Manchester United stunned arch rivals and pre-match favourites Manchester City to lift the FA Cup at Wembley.
Garnacho pounced on a howler of a mix-up between City keeper Stefan Ortega and Josko Gvardiol as he was left with an open goal on the half-hour to put Utd ahead.
Man of the Match Mainoo finished a delightful piece of play to send Utd two up just before the break.
City came out fighting in the second half but chances squandered left them trailing until City substitute Jeremy Doku pulled one back with four minutes left but Ten Hag’s side held firm to record a famous victory and win a 13th FA Cup, their first since 2016.