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
5. Adam Webster
Big call for Potter here. Webster was scheduled to be fit for this fit having been out since the draw at Burnley with an injured ankle. If he passes the fitness tests, Webster could well line up in place of Dan Burn
6. Pascal Gross
The German is at the top of his game at the moment. Playing with such confidence and proved capable of adapting to numerous positions this season. A huge surprise if he does not start at Old Trafford
7. Adam Lallana
Looks back to full fitness and the 32-year-old is having his best spell since his arrival on a free transfer from Liverpool last summer. He was excellent against Leicester, Southampton and Newcastle and his experience and guile will be vital at United
8. Yves Bissouma
Will be keen to impress on the big stage. Manchester United is one of the many clubs the Mali international has been linked with of late. Many United fans see him as an upgrade to Fred