By Jack Gallagher With 20 minutes to go at Wembley Stadium in Sunday’s FA Cup semi-final clash between Man Utd and Coventry City, it looked like the Red Devils were to cruise into a second consecutive final. Three goals to the good thanks to Scott McTominay, Harry Maguire and Bruno Fernandes, it was all going swimmingly forMan Utd. And then the collapse happened. Within 25 minutes – including stoppage time – Erik ten Hag’s side completely collapsed, conceding three goals and relinquishing their previously cushy lead. In extra-time, it almost got even worse when Victor Torp prodded the ball pas…