Emery’s only defeat in the Europa League final: The club that ended his perfect run as a manager.
Arsenal. The 2019 UEFA Europa League final in Baku remains the only European final defeat in Unai Emery’s managerial career. His team lost 4-1 to Chelsea in a match where Arsenal’s early dominance was quickly broken by Chelsea’s ruthless counter-attacking tactics. While the figure of “5/6” appearances in the Europa League final might be slightly exaggerated (his official record is 4 wins, 1 loss), the answer to your trivia question is undoubtedly Arsenal. Emery’s achievements in the Europa League are unmatched: three consecutive titles with Sevilla, and a dramatic penalty shootout victory with Villarreal. That night in Azerbaijan stands as the only exception to his overall European success.