Arsenal boss Arsene Wenger has explained releasing Joel Campbell for loan.

The Costa Rica striker joined Sporting CP this week.

Wenger said: "I believe that he's a bit of a victim of the size of the squad.

"He is now at an age where he needs to play more regularly and I don't rule out that he comes back here and plays.

"He has gone to Sporting Lisbon and I think it's an interesting championship. Portugal always has an interesting championship and let's see how it goes for him."