Arsenal boss Arsene Wenger expects to see a "different" Theo Walcott this season.

The 27 year old set up Alexis Sanchez in the Gunners' comfortable 3-1 victory over Watford at the weekend and Wenger has backed Walcott to continue to be a key figure - if he avoids injury.

"I said before the season started that we will get a different Theo Walcott this year," Wenger told Arsenal's official website.

"Can he maintain that focus, that desire and that fighting attitude? Then he will have a great season.

"I hope he has no setback because he is an intelligent player, he is focused and has a great desire to prove his critics wrong and he's on a good way," the Frenchman added.