Dier grew up in Portugal, where he came through the youth ranks atSporting CP, making hisreserve and senior debuts in 2012. In 2014, he moved to English clubTottenham Hotspur for a fee of £4 million, going on to score 13 goals and total 365 appearances for the club, including in the2015 Football League Cup final and the2019 UEFA Champions League final. After ten years with Tottenham, he moved to Bayern Munich in January 2024, winning theBundesliga in his second season at the club.
Despite interest from Portugal, Dier opted to representEngland in international football. He made his debut for the senior team in November 2015, and was chosen forUEFA Euro 2016 and the2018 and2022 FIFA World Cups.
Dier moved to Portugal from England in 2001 with his parents and five siblings (two sisters and three brothers) when he was seven years old.[8] They spent a year living inLagos,Algarve region, where he briefly played in the youth football team ofEsperança de Lagos,[9] before moving toLisbon.[10][11] After the move, his mother was offered a job running the hospitality programme atUEFA Euro 2004.[12][13][11] Dier was accepted bySporting CP's youth academy, and in 2010, his parents returned to England while Dier remained in Portugal, living at Sporting CP'sAcademia Sporting inAlcochete.[14][15]
While playing football at the International Preparatory School in Lisbon, Dier's footballing ability was spotted by hisP.E. teacher Miguel Silva, who referred him toSporting CP for a trial at the age of eight.[16] Dier signed professional terms with Sporting CP in April 2010. The Portuguese club beatArsenal,Manchester United andTottenham Hotspur to his signature.[17] Sporting CP also sold 50% economic rights of the player to athird-party owner,Quality Football Ireland Limited.[18]
In January 2011, Dier agreed to joinEverton onloan until 30 June. Sporting CP's official website stated that the loan was "an opportunity for the athlete to grow in a more competitive and demanding environment".[19][20] Dier representedEverton U18s ten times during his loan spell and won the 2010–11U18 Premier League with the team.[21] Dier encountered difficulties resettling into English life, but in the summer of 2011, he extended his loan stay in the Everton academy for an additional 12 months.[12]
On 11 November 2012, Dier was called to play for the first team in aPrimeira Liga 1–0 home win againstBraga. Fifteen days later, he scored his first goal for Sporting CP's first squad in a 2–2 league away draw againstMoreirense.[24]
Dier signed a new contract on 9 September 2015, lasting until 2020.[30] During the2015–16 season, he was utilised as a defensive midfielder by Tottenham head coachMauricio Pochettino,[31] establishing himself as the regular partner toMousa Dembélé as Tottenham challenged eventual championsLeicester City for thePremier League title.[32] On 15 August, he scored Tottenham's first goal of thePremier League season in a 2–2 draw at home toStoke City, and on 26 September, Dier scored the team's equalising goal in a 4–1 home victory overManchester City.[33]
In the2018–19 season, Dier scored his first goal of the season, which is his first in 18 months, in the 1–0 win againstCardiff City, helping Tottenham to their joint best start of a season in the Premier League after eight games.[40] He underwent surgery mid-December 2018 due toappendicitis,[41] and returned to the team on 20 January 2019, coming on as asubstitute in the game againstFulham.[42] However, he continued to suffer the after-effects of the appendicitis operation, repeatedly falling ill and missing games.[43] On 1 June, in Tottenham's first appearance in theChampions League final, Dier replaced the injuredMoussa Sissoko for the final 16 minutes of a 2–0 loss to Liverpool in Madrid.[44]
On 4 March 2020, Dier was involved in a confrontation with a spectator in the stands following Tottenham'sFA Cup defeat byNorwich City. Dier climbed into the lower tier at theTottenham Hotspur Stadium after the person "insulted" Dier and became involved in a dispute with Dier's brother Patrick who was also in the stand. The following day, theMetropolitan Police said they wished to interview Dier, his brother and the supporter alleged to be involved in the incident.[48][49][50] On 23 April, Dier was charged by theFA with misconduct for a breach of FA Rule E3 due to his "improper and/or threatening" action.[51] In July 2020, Dier was fined £40,000 and banned for four games.[52]
On 21 July 2020, Dier signed an improved contract until June 2024.[53]
On 11 January 2024, after a reduction in playing time under new Tottenham managerAnge Postecoglou, Dier was loaned toBundesliga clubBayern Munich on a six-month loan contract that would expire at the same time as his Tottenham contract in June 2024. However, the loan contract included the option for a one-year permanent contract with Bayern Munich should he achieve the required minimum number of appearances.[54] Hence, he reunited with his former teammateHarry Kane who had joined the club the previous summer.[55] He made his debut for Bayern Munich on 24 January 2024 in a 1–0 win againstUnion Berlin.[56] On 1 March 2024, having made the requisite number of appearances to satisfy the clause in his loan contract, it was confirmed that Dier would permanently transfer to Bayern Munich at the conclusion of the season on an initial one-year deal.[57]
On 14 May 2025,Ligue 1 clubMonaco announced the signing of Dier on a free transfer and a three-year deal, starting from 1 July.[62] Later that year, on 16 August, he made his debut, scoring a goal in a 3–1 victory overLe Havre.[63] On 1 October, in theleague phase match against Manchester City in the2025–26 UEFA Champions League, Dier earned a penalty which he converted from the spot in the final minute to draw the game 2–2.[64]
Dier had been approached by thePortuguese Football Federation to play for Portugal in the future, but could only do so once he turned 18.[65] He had been involved in a high-profileEngland national team kit promotion for sportswear manufacturersUmbro.[66] Upon his signing for Everton, an FA spokesman said, "Our intention will be to select him for theyouth squad in the coming weeks," referring to the 2011 edition of the under-17 international Algarve Tournament.[67]
Dier earned his first England call-up in November 2011 whenunder-18 head coachNoel Blake picked him for a match againstSlovakia.[68] He played the full 90 minutes in the 1–1 draw on 16 November 2011.[69]
Dier made his debut for theEngland under-21s on 13 August 2013 in a 6–0 win againstScotland.[72] In 2014, he pulled out of the squad, informing managerGareth Southgate that he did not want to be deployed as a right-back anymore and would rather work on the centre-back position at his club, Tottenham.[73]
On 5 November 2015, Dier was selected for the first time to the England senior team bymanagerRoy Hodgson ahead of friendlies againstSpain andFrance.[31] He made his debut eight days later against the former atAlicante'sEstadio José Rico Pérez as a 63rd-minute substitute alongside his Tottenham teammate Dele Alli in a 2–0 loss.[74] Dier made his first start on 17 November against France, a 2–0 win at Wembley.[75] On 26 March 2016, he scored his first international goal, headingJordan Henderson's corner for the winner in a 3–2 victory againstGermany in Berlin.[76]
On 10 November 2017, Diercaptained the England team for the first time in a friendly match against Germany at Wembley that ended in a goalless draw.[78]
In September 2022, Dier received his first England call-up in 18 months for theUEFA Nations League matches againstItaly andGermany.[81] He started in the 1–0 defeat to Italy at theSan Siro.[82] A month later, he was included in the 26-man squad for the2022 FIFA World Cup in Qatar.[83] He made two substitute appearances at the tournament, in the group stage defeat of Iran and the Round of 16 defeat of Senegal, his last time playing for his country.[84] He was an unused substitute for England's victories over Italy and Ukraine in theUEFA Euro 2024 qualifying rounds and was not included in the tournament squad.[84]
Dier can play as a midfielder, centre-back and right-back.[85] It has been noted that his versatility enabled Tottenham's effective adoption of a flexible approach, allowing them to switch systems efficiently within a single match.[86] Dier has said that he has mixed Portuguese and English footballing styles on his own.[85] In 2018,ESPN's Mark Ogden described Dier as "more of a destroyer than a creator".[87]
^"Atlético 1–3 Sporting B" (in Portuguese). Liga Portuguesa de Futebol Profissional. 26 August 2012. Archived fromthe original on 11 September 2012. Retrieved5 December 2013.
^"Moreirense 2–2 Sporting" (in Portuguese). Liga Portuguesa de Futebol Profissional. 26 November 2012. Archived fromthe original on 12 July 2012. Retrieved11 November 2012.