By Jake Polden Erik ten Hag has admitted it is going to be “difficult” for Manchester United to qualify for the Champions League this season – a fact that could cost him his job. United were beaten 4-3 by Chelsea at Stamford Bridge on Thursday, despite leading until the tenth minute of stoppage time. The Blues went 2-0 up through Conor Gallagher and Cole Palmer before the Red Devils drew the game level. Alejandro Garnachonetted first for United before Bruno Fernandes made it two. The Argentine youngster then put the away side in the driving seat, but two more Palmer penalties in stoppage time …