Arsenal manager Arsene Wenger has defended Alexis Sanchez after he completed his move to Manchester United on Monday.

Armenian Henrikh Mkhitaryan moved in the opposite direction.

Sanchez was criticised by some ex-Arsenal players for a perceived poor attitude ahead of his exit from the club, but Wenger has denied the Chilean showed any negativity.

"He's a very professional player who has been committed until the last minute," he told the club's website.

"In training, he was practising with full power, so I never questioned that. I never had any doubts about that.

"He's a world-class player who has contributed well to us and was a star here.

"I would like to thank him for his contribution here and I wish him well.

"He's very attached to Arsenal and we were very attached to him as well, so it is not with pleasure that we lose him but it's part of professional life."