"It's his visa and work permit that are holding it up but we are positive it can happen this week," Wenger told reporters at a news conference ahead of Wednesday's Premier League clash with Liverpool.
Wenger said the game with Juergen Klopp's men will come too soon for winger Alexis Sanchez, who is currently nursing a hamstring injury and has not featured for the Gunners since November.
"We think he will be short for Wednesday, he has a chance to be available for Sunday (against Stoke). He is always keen to play. If you listen to Alexis, he can always play - even when he is injured," Wenger said.
"We try to be cautious. With a muscular injury you never exactly how big the risk but he is very close. If you look at him training he is very close."
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(Reporting by Shravanth Vijayakumar in Bengaluru; Editing by Toby Chopra)
