If the camel’s back is not broken just let, then the sight of Manchester United conceding the latest winning goal in the history of the Premier League at Chelsea will have left the poor dromedary with a nasty case of lumbago. As Cole Palmer struck in the 100 and the 101 minute, it was deja vu for visiting Manchester United supporters. All throughout the campaign, Erik ten Hag’s side have been plagued by individual errors, dreadful in-game management, an alarming propensity to collapse under even the slightest hint of pressure, and a very obvious weakness when defending cut-backs. That 4-3 defe…