Arsenal legend Paul Merson has questioned the free transfer signing of Willian.
The Brazilian, 32, left Chelsea in the summer on the expiry of his contract and got a bumper three year deal from the Gunners.
Willian has contributed three assists and no goals in nine Premier League starts this term.
Merson told Sky Sports about the winger: "I don't know what's happened to Willian.
"He was unplayable for Chelsea at times last season, and then Arsenal sign him and you think: 'What a signing this is. On a free transfer!' I can't remember him having a good game yet. I'm a massive, massive fan of his. He's just not got going.
"And at the moment Pierre-Emerick Aubameyang is not playing. You can't play in a football match and touch the ball six times in a half. You've got to go and get the ball, get involved, whatever happens."
