Manchester United boss Jose Mourinho has hailed the attitude of Marcus Rashford.
The striker again scored in the Champions League win at Valencia.
Mourinho said, "I'm always pleased because he always plays on his limits.
"He gives absolutely everything and that's what I demand from players. After that, more quality, less quality, better performance, not as good, but I think that's the basic thing of a professional and, at that level, Marcus is untouchable because he's fantastic in terms of his contribution for the team."