Poland international Moder and Belgium star Trossard have impressed for club and country of late. Moder was excellent on his first Premier League start during Albion's 3-0 win against Newcastle and followed that with a fine goal for his country against England at Wembley Stadium on Wednesday night.
Trossard has scored in his previous two matches for Brighton against Southampton and Newcastle and also netted his first goal for his country during the international break with sublime long range strike against Belarus.
Scroll down and click to see who makes our Brighton starting XI for a stern test at second placed Man United
9. Jakub Moder
Superb for Brighton on his first PL start against Newcastle and carried that fine form on to the international stage with Poland. The midfielder will arrive back in Brighton full of confidence after his goal against England at Wembley and will want to impress at Old Trafford
10. Leo Trossard
Scored against Southampton and Newcastle and could make it three in a row at Old Trafford. The Belgian also netted his first goal for his country during the international break with an absolute belter against Belarus
11. Neal Maupay
Finally got the goal his recent performances deserved during the 3-0 win against Newcastle. Eight for the season now and the Frenchman just about gets the nod for Old Trafford ahead of Welbeck for his sheer work rate. Welbeck could well be vital from the bench.