Katsouranis qualified with theGreece national football team for international play between 2002 and 2015. They won theEuro 2004, and played in theEuro 2008,2010 World Cup,Euro 2012 and2014 World Cup tournaments. With 116 appearances, he is a member of a close club of players who had more than 100 caps in the history of the Greece national team.
Katsouranis was not even 17 years old when he debuted in 1996 for thePatras-based clubPanachaiki. In his first season, Panachaiki reached theGreek Cup semi-finals, tying an all-time best result in the competition. In the following season, Katsouranis made three appearances in theIntertoto Cup, scoring one goal as Panachaiki finished fourth out of five in theirgroup. He spent six seasons in Patras and by the third, he was a regular.
In the summer of 2002, when his contract with Panachaiki expired, Katsouranis opened negotiations withPanathinaikos.Fernando Santos however, Panathinaikos' coach at the time, decided to signPortugueseCarlos Chaínho, a player he knew when atPorto, which meant Katsouranis' transfer would not be finalized. Katsouranis was then approached byOlympiacos. The talks with the vice-president of the club, Giorgos Louvaris, seemed final, but Louvaris asked Katsouranis to wait until the president,Sokratis Kokkalis, returned from a business trip to the United States for the final negotiations. However, formerAEK Athens president Chrysostomos Psomiadis took advantage of the situation and convinced the promising midfielder to sign a three-year contract with AEK Athens.[3]
Coming off the bench and making an impressive debut for the club, Katsouranis immediately became an integral part of the club. His continuing progress in the top-level rapidly made him one of the team's best players with great performances, both domestically and internationally. He was used mainly as a central midfielder but also can be used in the wings. In his first season, alongside his teammate in the national team,Thodoris Zagorakis he formed an amazing "duo" in the midfield of AEK.[4] In fact, he had an excellent performance in theUEFA Champions League group stage matches of that season and also scored a historic goal againstReal Madrid at theSantiago Bernabéu Stadium.[5] He also scored the winning goal against Olympiacos inRizoupoli Stadium at the stoppage time.[6]
In the summer of 2004, Katsouranis remained at AEK, despite several offers, having agreed a new three-year contract, while most of his teammates from the previous campaign had acted on their frustration and left. In the fevered atmosphere that saw AEK's gates quadruple as fans flocked to support the club under new president and former player,Demis Nikolaidis, Katsouranis adopted a special place in supporters' hearts.[7] That season would prove to be one of Katsouranis' greatest seasons with the club, as he scored 10 times in 28 appearances despite playing in the midfield, leading the club for the title race, while he was voted as the best Greek footballer of the championship. AEK managed to finish third despite the big cut in the team's budget.Werder Bremen expressed strong interest for the Greek international, but both Katsouranis and Nikolaidis decided to reject the offer.[8]
Despite radical changes to the squad in the first season under Nikolaidis, players, fans and club staff came together to create an electrified atmosphere at every AEK game. Led by captain Katsouranis, the team responded with great performances, only missing the championship on the final day of the campaign.Everyone connected with the club was united for one purpose: the team, said Katsouranis.First we had to make the club financially healthy, and then to make sure everything was well organised.[3]
In the2005–06 season, Katsouranis led the club to a second-place finish in the league, which brought them to the UEFA Champions League. At the end of the season, Santos was sacked and Katsouranis wanted to play to a bigger club and further his career abroad. He was signed byBenfica for a fee of €2.3 million plus the proceeds of friendly match in Athens between the two clubs.[9]
Katsouranis signed a four-year contract with Portuguese club Benfica on 22 June 2006, joining his former manager Fernando Santos and his teammate with Greece,Giorgos Karagounis. When he arrived in June, he said "Even if Fernando Santos or Karagounis were not here, I still would have joined. Benfica to me is one of Europe's top clubs and they proved that in the UEFA Champions League. I am here to achieve that same objective and joining Benfica can also help my international career."
In his firstClássico against Porto, he followed on to score for Benfica with a header following a corner kick, the second goal he has scored for Benfica in the league in just a few matches. Katsouranis quickly became a key player for Benfica, scoring some important goals and also captaining the team on a few occasions. He proved to be one of the most important imports into the2006–07 Portuguese Liga, playing in 29 league matches and scoring six goals.
Despite interest fromValencia, Werder Bremen,Tottenham, andJuventus, Benfica refused to sell the player, despite Juventus willing to tradeTiago for the Greek international. Benfica were reluctant to sell and, on 14 September 2007, Katsouranis agreed to a contract extension with Benfica for another two years. During his last season there, he was given a chance to captain the side, which was a huge honour.[10] On 2 March 2009, Katsouranis was named "Benfica Player of the Year".[11]
Katsouranis returned toGreece and signed a four-year contract with Panathinaikos, on 1 July 2009 on a fee of €3.5 million.[12] He has stated that it's the team he supported since childhood. He scored his first goal againstSparta Prague for the Champions League. He scored his first league goal againstSkoda Xanthi on the 2nd matchday of the 2009–10 season. Katsouranis scoring abilities were a key part of Panathinaikos' good run during the first half of the season, as the defensive midfielder scored 8 goals in just half a season. In his first season with Panathinaikos, he managed to win the domestic double with the2009–10 Greek Cup final againstAris Thessaloniki. Katsouranis was the team's second top scorer behindDjibril Cissé with eight goals in theSuper League Greece triumph.[13]
In October 2012, Panathinaikos president Giannis Alafouzos terminated his contract with the club, with Katsouranis paying the price for team's bad performances at the start of the2012–13 season.[14] Katsouranis has been serving a six-match suspension for verbally abusing a referee in a GreekSuper League match in August. Alafouzos reportedly told the rest of the squad that the player was "history" at Panathinaikos, whilst also expressing his displeasure about "two or three other(s)", without going into specifics.[15] Katsouranis left Panathinaikos with rumours for a lot of problems with foreign players and the accusation of controlling the changing rooms. Katsouranis never replied to a series of miseries which were released and related to him.
On 11 December 2012 he agreed withPAOK, not only because he wanted to prove that it can be helpful to club plans to become a champion, but also because he wanted to make it clear that working with people who trust him and with a serious administration, he will never be a problem for those who want to hide in the seatbacks and ask severe criticism. He succeeded in both. In fact few people know that he went to PAOK without the blessing of his former coachGiorgos Donis and needed only a few weeks to become one of his favourites.[16] Katsouranis would get €700,000 for a year and a half, plus any bonuses. It formed part of the policy of the new PAOK owner,Ivan Savvidis, who insisted on the acquisition of Greek internationals in order to boost both the strength of the roster and the prestige of the club.[17]
He made his debut with his new club on 6 January 2013 againstPanthrakikos. On 24 January, he scored his first goal with PAOK in the cup againstKallithea. On 3 March 2013 Katsouranis scored his first goal in the Greek Super League with PAOK in a 4–2 win againstPanionios. He formed a strong partnership withGordon Schildenfeld in the defence reducing to a great extent the goals which PAOK conceded. On 27 August 2013 Katsouranis scored againstSchalke 04 in the Champions League playoff in a 2–3 loss.[18]
In the following season he was named vice-captain of the club behindDimitris Salpingidis. He believed that PAOK needed time and patience to identify changes to a club that really tries to make a break with problematic situations and detach from stereotypical stories. He said, "What I see is that there is a plan. The fact that acquires so many Greek international footballers, shows in itself that is aiming a target. The challenge is to remain faithful to it and not skewed along the way. I have lived the same with AEK in summer of 2004. Then was not given so much money to the extent that PAOK does by acquiring reputable players. Along the way in AEK made other things than those envisaged in the initial plan leading the team to tabefaction. This should avoid PAOK. To remain faithful to the plan is the key not to lose the opportunity to build something big."[19] On 27 February 2014, he was sent off in the 69th minute in a 3–0UEFA Europa League loss against Benfica, and he received a standing ovation from the Benfica fans as he exited the field in recognition for the seasons he spent with Benfica.[20]
On 16 April 2014, in an episodic semi-final game for the cup, where fans of both Olympiacos and PAOK put the mental in monumental as they greeted their heroes with a ring of fire, he had a key role in helping PAOK eventually went through on away goals after a 1–0 win following a 2–1 defeat in the first leg in Athens. It was a tremendous game as the fans then use the pitch as a giant ashtray by throwing their flares onto the grass and set fire to one of the dug outs.[21] Five minutes before the end of the game for the sake of a ball he falling out with his team player inGreece,Giannis Maniatis leading to his drop-off from the game.[22][23]
In September he signed a contract withPune City, the team ofBruno Cirillo andDavid Trezeguet coached by the Italian coachFranco Colomba.[24] Speaking on Kostas' arrival, Gaurav Modwel, CEO, FC Pune City said, "We would like to extend our heartiest welcome to Kostas. Apart from being a great player, he is an amazing human being his passion for football, down to earth personality and desire to learn and share sets him apart. His vast experience as a midfielder shall bring great balance to the FC Pune City team."[25]
Katsouranis became the first player and captain of this year'sFIFA World Cup to feature in theISL. He played the first mach with the new club against Delhi Dynamos who containedAlessandro Del Piero in an away draw which ended 0–0. In a match against FC Goa, Katsouranis scored his first goal for the club and put in a man of the match performance in a 2–0 home win. Kostas made a very impressive play along with the DutchmanJohn Goossens and scored a beautiful goal in the away match in Kolkata againstAtlético de Kolkata with the final result of 1–3 in favour of Katsouranis's club. This goal was awarded as the goal of the ISL's first season.[26][27]
Even though in its first season, the Indian league is far more exciting than many others across the world and at the same time possesses a number of world class players. One of them, Katsouranis, winner of the 2004 Euro, scored his fourth goal in the season, becoming the league's second top-scorer just beneath Brazilian internationalElano.[28]
On 26 December 2014, he signed a six-month contract withAtromitos with an option to extend it by one year. Undoubtedly he was the most impressive transfer of this winter's window, the signing of former Greece skipper. "I will give it all for Atromitos", stated Katsouranis who in the first half of the season plied his trade in India, with remarkable success in that up and coming mini-league that lasts only a few months. The 35-year-old has made no secret of his aspiration to return to the national team, too, as former Greece managerClaudio Ranieri had not called him up for any of the five matches Greece played after the 2014 World Cup.[29][30]On 3 January 2015, he played the first match with the new club at home againstKalloni. He signed for Atromitos in a six-month deal with an option for one year more, however, the Athens club decided not to keep Katsouranis in their squad ahead of next season.[31][32]
On 15 September 2015, Katsouranis signed withNPL Victoria clubHeidelberg United on a one-match contract, with the option to extend it should they win their followingFFA Cup match.[33][34][35] Heidelberg United coach George Katsakis summed it up by commenting: "When you start to put things into perspective, he played forS.L. Benfica, all over the world, to come to the Olympic Village for Heidelberg, it's amazing."[36]
"Katsouranis is one of the best players I ever trained in my professional career"
On 29 September 2015, Katsouranis officially announced his retirement from professional football.[38]
In August 2016, after his retirement from professional football, has appointed as a Technical Director ofFootball League clubPanachaiki.[39] On 28 November 2018, he resigned from the position.[40]From 2016 to 2018, he was giving Master Classes of Football at the Institute of Vocational Training (ΙΕΚ) “ΑΚΜΗ”, Athens (Greece) and "ΙΠΠΟΚΡΑΤΕΙΟΣ", Athens (Greece)
On 14 November 2017, Katsouranis was appointed as Ambassador of theUnited Nations. The announcement stated: "The European Champion and Technical Director of Panachaiki F.C. Kostas Katsouranis was delighted to participate in the information campaign on the 17 UN Sustainable Development Goals. Sport and Athletes around the world play a very important role in achieving the Goals, Development, Peace and Human Rights. We like to thank Kostas Katsouranis for his participation and his substantial contribution to the success of their efforts."[41]
In the TV season 2018/19 he participated as a Commentator in the Sports TV show Total Football on the OPEN TV Greek channel. During the 2021/22 season he started working as a commentator and analyst of the Greek Super League 1matches, in the show of the YouTube channel "Betarades".
Katsouranis made his international debut for Greece on 20 August 2003 againstSweden and scored his first goal againstKazakhstan in a2006 FIFA World Cup qualifier. Katsouranis was one of the key factors inGreece's triumph atUEFA Euro 2004, beatingPortugal in his own "home" (Benfica'sEstádio da Luz) and, following Greece's success at the tournament. Forced his way into the starting XI after coming off the bench for the opening game of the tournament, he was an extremely important part of a three-man midfield that also includedTheodoros Zagorakis andAngelos Basinas. It was in Portugal that Katsouranis really made a name for himself, delivering a string of consistent performances culminating with that famousfinal in Lisbon. Lifting theHenri Delaunay trophy represents the pinnacle of a national-team career that so far has never again reached the same heights.[44]
Katsouranis was a regular for Greece in their unsuccessful 2006 FIFA World Cup qualification campaign. He believes that the worse moment of the Greece national team was the elimination from the 2006 World Cup, realizing his own percentage in this unsuccessful tournament in a game againstAlbania national football team.[45]
On 17 October 2012, Katsouranis reached a milestone on the international level as he made his100th appearance in a Greece shirt. A 1–0 win overSlovakia in Bratislava certainly stole the headlines, but Katsouranis became the fourth Greece player to make a century of appearances for Greece just days after teammate Giorgos Karagounis set the sport record for all-over appearances.[47]
Katsouranis's exceptional leader characteristics along with experience and the huge influence on the pitch saw him stand-in ascaptain for Greece at the2014 FIFA World Cup, with the team's regular captain, the veteran Karagounis, restricted to substitute appearances at the age of 37.[48] On 19 June 2014, Katsouranis became the first Greek player in World Cup history to be shown a red card. He was dismissed in the 38th minute of the group match againstJapan for committing two bookable offences.[49]
After the draw forUEFA Euro 2016, Katsouranis stated that he was confident of reaching the finals due to a lack of "powerhouses" in their qualifying group. Katsouranis believes Greece face a tricky task to reach the tournament, which will be held in France, but believes the side are well prepared for the challenge."It's a good draw for us but we have to prove that on the pitch as well," he said."I believe we have what it takes to be among the final 24 teams. There are no powerhouses in our group, but there are dangerous rivals."[50] However, Greece would finish bottom of their qualifying group, winning just once, on the final matchday.
Katsouranis could play in various positions, characteristic shared withRuud Gullit as a result of the combination of his technique, speed and strength. He has been described as "a reasonable goal threat despite being notionally amidfielder".[51] A fine passer of the ball, Katsouranis was also strong in the air and has excellent positioning defensively. However, it was his natural attacking instinct that makes him such a valuable footballer, being able to ghost into the box with regularity despite usually playing in a deep-lying midfield role. Over his club career and at times for the national team, he proved to be a natural finisher, scoring a variety of goals and crucial ones at that. His ability to offer an attacking threat without compromising his defensive duties means he is the embodiment of a box-to-box midfielder.[44]