The centre-back is playing some of his best football under the Spaniard, but his future remains up in the air.
“I'm really happy with him. That's something the club has to address but he knows my opinion," said Arteta.
“I'm really happy with him as you can see.
"The way he's playing, how committed he is with everything we're trying to do, the level in his performance ever three or four days, he's been really consistent and I'm really happy with him."