MAME Biram Diouf pressed his claims for a place in United's senior starting line-up with an impressive hat-trick for the reserves in their 4-0 win over Sunderland on Thursday night. The striker, who arrived from Norwegian club Molde earlier this month, gave United a 17th-minute lead with a neat chip over Sunderland keeper Trevor Carson. He then doubled the Reds' lead on the stroke of half-time after Gabriel Obertan had got in behind the home side's defence. Diouf completed his haul after taking a pass from Olivere Norwood early in the second half before leaving the fray just before the hour mark. Substitute Sam Hewson rounded off the scoring from the penalty spot barely 10 minutes after joining the action. UNITED: Amos, Gray, Dudgeon, De Laet, Gill, James, Norwood (Hewson 63), C Evans (Macheda 74), Diouf (Stewart 57), Welbeck, Obertan. Not used: Moffatt, Zieler. Is Diouf good enough for United's first team? Have your say.