Ander Herrera marvelled at Alexis Sanchez's tireless work-rate after the Chile forward made an impressive Manchester United debut on Friday.
Sanchez laid on two goals as Jose Mourinho's side eased to a 4-0 FA Cup win at Yeovil Town, including a reverse pass for Herrera to thrash in United's second.
However, it was another aspect of the former Arsenal favourite's game that caught the eye of his new team-mate.
Asked for his thoughts on Sanchez's display by MUTV, Herrera said: "Yeah, amazing. He has played very good, but what I really like from him is the way he fights when he loses the ball.