Manchester United boss Jose Mourinho was delighted with two-goal Marcus Rashford in their 4-0 rout of FA Cup opponents Reading.

The young forward raced through to score his first in a one-on-one situation before pressuring Ali Al-Habsi into a calamitous error to round off the rout late on.

"I spoke with him at half-time and told him I don't care with the goals he missed in the first half because he had a big responsibility in the way we were breaking their defensive line," Mourinho said.

"He was playing so well, one more goal, one less goal, it doesn't change. But for an attacking player to score a goal means happiness, confidence, it was good for him.

"He's very fast and the team knows how to change between Marcus and Zlatan, they are two different players, we know the kind of movements we have to do. With Marcus in the first half we were very objective and we created lots of problems to Reading."