Manchester United showed it will take much more than one pre-season to become a force again as Erik ten Hag's era as manager began with a chastening 2-1 home defeat by Brighton and Hove Albion.

The atmosphere at United seemed to improve over pre-season, but their performance on Sunday was little better than the underwhelming football regularly served up under Ralf Rangnick.

United struggled to cope with Brighton's fluidity and the visitors deservedly found themselves two up at half-time as Pascal Gross – twice the scorer of winning goals against the Red Devils – netted a brace.

Cristiano Ronaldo – benched due to a lack of fitness – made a difference in the second half and a scrappy Alexis Mac Allister own goal halved the deficit, but Brighton held on for a first ever win at Old Trafford.