Wenger has confirmed second-choice goalkeeper Ospina will start both tomorrow's Europa League last 32, second leg against Ostersund and Sunday's Carabao Cup Final against Manchester City.
“It's always a difficult decision but I think they are clear about that," Wenger told the London Evening Standard.
“Since the start of the season, it's clear. He played in the whole competition. I have two world-class goalkeepers and I decided from the start on to have clarity in the games they play. I maintain that."