There’s deja vu, and then there’s the sort of nasty, head-spinning deja vu Manchester United supporters find themselves suffering from every time Erik ten Hag’s side take to the pitch. Another goal conceded from a set-piece, another penalty given away, more points dropped late on. In the space of just one week, against Brentford, Chelsea and Jurgen Klopp’s Liverpool, Manchester United have thrown away victories in the 99, the 100 and the 84 minute. The manner of Liverpool’s Old Trafford opener, in particular, left a bad taste in the mouths of a Red Devils legend who, had he been on the pitch, …