Former Arsenal midfielder Stewart Robson is convinced Alexis Sanchez will leave this year.

The Chile international has been frustrated at Arsenal in recent weeks and Robson says the attacker will leave Arsenal this summer in search of silverware at a bigger club.

"He's Arsenal's best player but I don't think he'll be at Arsenal come the start of next season," Robson told ESPN.

"I think he wants to go and win the big trophies and that may take him somewhere else."