Erik ten Hag has thanked Pep Guardiola and Manchester City "for the lesson" they handed his Manchester United side at the Etihad on Sunday.
United were beaten 6-3 in the derby, only salvaging some respect with two late Anthony Martial goals having been 6-1 down in the closing stages.
It was the fourth defeat in nine games for Ten Hag as United manager and the second time they've been beaten heavily this season, having also lost 4-0 at Brentford in August.
