And that is killing their rivals at the minute.
The fabled midweek hangover is taking place time and time again – and both Liverpool and Arsenal will have to focus on getting out of their respective Champions League groups.
Missing out on the Europa League was about the only good thing David Moyes did for the Red Devils and getting knocked out of the League Cup earlier this season was not a bad thing either.
United have time to focus, to get their players ready for the weekend, to reduce the risk of injury and to allow their new boys to come to terms with life in the Premier League.