David Moyes has fired a warning to Wilfried Zaha, saying the Manchester United winger still needs to learn what playing for the Premier League champions is all about, reports the Daily Mail.
The England U21 international hasn't featured in the first-team since the Community Shield victory over Wigan Athletic at Wembley in early August, and is expected to be loaned out when the transfer window reopens in January.
Zaha is understood to be frustrated at his limited opportunities to impress at Old Trafford in 2013/14, after completing his £15million move from Crystal Palace at the start of the year.
The 20-year-old was initially sent back to Selhurst Park, where he played an integral part in helping Ian Holloway's side win promotion from the Championship last season, but has seen his development hampered by a lack or regular of regular action this term.
He impressed on Manchester United's pre-season tour, but has since fallen down the pecking order, even behind Adnan Januzaj, who capped his full debut with a brace against Sunderland in the last Premier League game.
Moyes understands Zaha's frustration, but explained there is a reason behind his reluctance to throw him into the senior side.
"Wilf has not appeared. We have not felt we have had the opportunity. I want Wilf to get used to what happens here. The competition is hard," he said. "It is just impossible to get all these players a game at the one time. You can only ever play eleven.
"It is important Wilf gets to see the level of the training here, the level of the players and the quality they have got. He is getting better which we are pleased about."