Óscar Esaú Duarte Gaitán (born 3 June 1989) is a professional footballer who plays as a centre-back for Saprissa.

[6] Duarte moved to fellow La Liga team Levante UD on 1 August 2019, on a two-year deal,[7] though the signing was not registered for three more weeks due to UEFA Financial Fair Play Regulations.

[8] His first season in the city of Valencia was marred by serious injuries; on 21 January 2020 he scored his first goal to equalise in a 3–1 loss at Sevilla FC in the last 32 of the Copa del Rey.

[10] On 30 April 2021, Duarte added another year to his Levante contract by playing his 26th game of the season, against RC Celta de Vigo.

[16] Costa Rica completed the group stage unbeaten, recording a second consecutive clean sheet in a 0–0 draw with England in Belo Horizonte.