Sunderland boss Paolo di Canio has told Jack Colback he can be their first-choice wing-back.

Colback is considering his options as he wants to play in midfield.

But Di Canio says: "Now we're playing in a different way, he's started to understand that as a left-back he becomes like a winger.

"With the system we're going to use this year, both full-backs often during the game will become wingers. He's going to enjoy it."