By Jack Gallagher Labelling an FA Cup semi-final win at Wembley Stadium as ’embarrassing’ seems wrong, doesn’t it? And yet that’s a pretty perfect summation of Manchester United’s victory over Championship outfit Coventry City on Sunday. The Red Devils gave up a three-goal lead inside the final 20 minutes of the game, leading to a penalty shootout which they’d eventually win courtesy of successful spot kicks from Diogo Dalot, Christian Eriksen, Bruno Fernandes and Rasmus Hojlund. Here’s everything that went wrong for Erik ten Hag’s side on Sunday… ComplacencyWith 20 minutes to go and with a …