Carlos Agustín Fonseca Teijeiro (born 8 March 1981) is a Spanishfootballmanager, currently working as an assistant coach for theI-League clubInter Kashi.
Fonseca was born inMadrid, and started his career with EF Arganda'sCadete squad in 2012. Ahead of the 2014–15 season, he was appointed manager of theJuvenil squad, and managed the side for two years before joiningGetafe CF.[1]
On 26 June 2019, Fonseca was presented as manager ofTercera División sideCD La Granja.[2] On 27 October, after only winning six out of 36 possible points and a 0–6 loss toZamora CF, he was sacked.[3]
In August 2020, Fonseca moved abroad and joinedAl-Tai in Saudi Arabia, being in charge of the under-23 side.[4] On 9 February 2021, he replaced compatriotAlex Pallarés at the helm of Bolivian sideReal Potosí.[5]
Fonseca was sacked by Potosí on 13 May 2021, with his club in the penultimate position.[6] On 30 November 2022, he was presented by theRoyal Madrid Football Federation as their new head coach of the under-16 category,[7]and won a national tournament with the federation the following April, beating theCatalan Football Federation in the final.[8]
On 6 May 2023, Fonseca returned to Bolivia and replaced compatriotJosé Aurelio Gay at the helm ofVaca Díez.[9] On 21 July, he was sacked.[10]
On 9 January 2024, Fonseca moved abroad and was named manager of the U19 team ofRiga FC in Latvia.[11] He was appointed as the assistant manager ofInter Kashi in India and also headed their team in2025 Super Cup.[12][13]