Manchester United face a huge week to get back on track after an unhappy loss in the Premier League at Brighton. While the next few days will inevitably be dominated by transfer talk as the deadline approaches, by the weekend, all attention will be on the pitch. On Sunday, United will host Liverpool in the Premier League, and the transfer window will be in the rear mirror. Erik ten Hag is already planning for the game, and he has used the training sessions at Carrington to add some youth to the mix to add a little competition. Jack Fletcher involvedTeenage midfielder Jack Fletcher has made a f…