It’s just the fourth league game of the season, but Erik ten Hag has been at Manchester United long enough to realise the stakes. After losing two of the first three games, a trip to newly promoted Southampton is the kind of banana skin that is generally a blemish on a flawless run. For Manchester United, however, it is looking like a stare from a deep well the climb out of which needs to start with a win here. Champions League qualification is paramount and United haven’t lost on an away trip to St Mary’s Stadium for the last 15 games. READ MORE: Premier League 24/25: Man Utd Fixtures, Start …