Rashford rose to prominence under Louis van Gaal in the second half of last season , scoring a total of 11 goals .
The 19 - year - old has struggled to nail down a starting position under Mourinho .
Rashford rose to prominence under Louis van Gaal in the second half of last season , scoring a total of 11 goals , but the 19 - year - old has struggled to nail down a starting position under Mourinho .