Manchester United interim boss Ralf Rangnick says Mason Greenwood is a huge talent.

The youngster got the only United goal in a 1-1 draw against Young Boys in the Champions League.

Rangnick is impressed with Greenwood's talent but believes he must work on developing himself physically.

"I think today he also showed not only the quality because of that beautiful goal, but also the way that he set up the opportunity for Juan Mata was brilliant," Rangnick said post-game.

"He's a massive talent - left foot, right foot, good on the ball. Also the way that he set up the goal for Fred on Sunday, so it's about continuity.

"He has to develop physically but technically for his age he is a great player. My job is to develop him, to make an athlete out of him and if he manages to do that, he can become a regular player for this club."