By Scott Saunders FROM WEMBLEY – How do explain a football team like this? FA Cup finalists Manchester United are remarkable, in the worst sense. Built on a history of never giving up and finding a way to win, the modern iteration always gives you a chance and continually finds a way to blow it. Sunday’s semi-final opponents, Championship side Coventry City, produced one of the most storied comebacks in competition history, forcing their way back from 3-0 down at 70 minutes to force extra time. But for VAR ruling out a winner which blew the roof off Wembley in the 120th minute and a couple of …