Southampton against Manchester United and actually host team conditions is not in the good shape because Southampton can not win 7 times in a row and even last week they lost against Fulham and Manchester United should be utilize this match to get 3 points to lifted their positions and i think away team will have good chance to win because Man United in the good shape after get good results on champion league
For a while Manchester United fell 2-0 behind the hosts, I'm not sure Mourinho will last until next year. Until the 30th minute MU's game was very bad.