http://www.bbc.co.uk/sport/football/35632870
By Neil Johnston
BBC Sport
- Defender Chris Smalling was ruled out earlier on Thursday with a shoulder problem, paving the way for 19-year-old Joe Riley, a substitute in United's FA Cup win at Shrewsbury three days earlier, to make his first senior start.
Martial's injury paved the way for Rashford's debut, but after recovering from falling behind on the night, United scored four times inside the final half hour to pull away.
They could even afford to end the match with another teenage debutant on the pitch in the shape of 17-year-old Regan Poole.
Under-pressure Van Gaal managed a smile at the end after his side scored five in a match for the first time under his control in front of a 58,609 crowd."