Bernd Leno has been challenged to make the Arsenal goalkeeper's jersey his own after Unai Emery confirmed the German will make his debut against Vorskla Poltava on Thursday.
Leno is yet to feature for Arsenal since joining from Bayer Leverkusen in the close-season.
Petr Cech has played every minute in goal under new Arsenal manager Emery so far.
But former Chelsea star Cech has not been without his critics as he has struggled to adapt to Emery's demands to play out from the back.
Leno is more adept with the ball at his feet and Emery has confirmed the 26-year-old will get his first outing as the Europa League campaign begins at the Emirates Stadium.
Asked if Leno would be in the team, Emery said: "Yes. He is going to play in the starting line-up.
"In our planning with our goalkeeper we have spoken with Javi Garcia, the goalkeeping coach. We need with Leno to give him a chance and the minutes of the game."