Looking to feature for the first time in Claret and Blue against the Red Devils, at the the 82,500-capacity MetLife Stadium, will be Walker-Peters, whose arrival at the Club was confirmed on Sunday morning.
Diouf meanwhile, will be hoping to build on a positive second-half display in the 3-1 win over Grasshopper Club Zürich, which saw Callum Marshall, Andy Irving and Lucas Paquetá etch their names on the scoresheet.
All three goalscorers from that game are part of the squad looking to continue building for the start of the Premier League campaign in the States, with Marshall joined by fellow exciting Academy of Football graduates Lanre Awesu, Kaelan Casey, Preston Fearon, Airidas Golambeckis, Finlay Herrick, Mohamadou Kanté, Lewis Orford, Freddie Potts and Ollie Scarles.
Leading the side across the pond will be captain Jarrod Bowen, who will be hoping to get on the scoresheet for the first time in pre-season after netting 14 times in 36 competitive outings during 2024/25.