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Manchester United forward Anthony Martial has less than one year left to run on his contract but the club have an option of extending his contract until 2020.

According to Peter Crouch, it will be crazy to let the 22-year-old forward leave Manchester United because he is an outstanding footballer.

Martial turned down the offer of a new contract from Manchester United this week.

“It is remarkable that Anthony Martial is in the final year of his contract at Manchester United,” Crouch told Daily Mail.

“I had to do a double take when I saw he is still only 22 because it feels like he has been on the scene for a long time. The reality is he is only just getting started in his professional life.

“He looks to me like a player who will respond to having an arm around his shoulder, one of those individuals who needs to be looked after to stop him going into his shell.

“He thrives when he is confident and you saw how good he can be at Chelsea last Saturday. There is a lot of talk around what will happen with his deal but one thing you can say for certain is that, if the deadlock continues, come January 1 every top club in Europe will want him.

“Martial could be United’s main striker for the next 10 years and it would be crazy if he was allowed to drift away for nothing.

“I would be amazed if that happens. United paid £50million for him and it would cost more than that to find a replacement of comparable quality.”