Arsene Wenger admits he does not know what the future holds for Theo Walcott with the England forward currently out-of-favour at the Emirates.
Walcott has not started a Premier League game since Arsenal's 3-2 defeat at Manchester United on February 28 and has been limited to substitute appearances in recent weeks after falling behind teenager Alex Iwobi and fit-again Danny Welbeck.
And, with Walcott's place in Roy Hodgson's squad for this summer's European Championships still in the balance, Wenger admits the forward has been frustrated at his lack of game-time.
Asked if Walcott could leave, Wenger replied: "I don't know yet.
"I'm not in transfer mode at the moment, but I think he has gone through a bad spell. He has responded very well, because he said: 'Okay, I will work harder and more.'
"Even when he comes on now, you see he is motivated and focused. Let's see how well he finishes the season now.
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"You have the emergence of a guy like Iwobi. But the players that did not play [against West Brom]: Santi Cazorla, Mikel Arteta, Mathieu Flamini, Jack Wilshere, Alex Oxlade-Chamberlain, and I forget a few that weren't even in the squad.
"All these players will be frustrated, or the guys who go out will be frustrated. Welbeck didn't play, Campbell didn't play."