David Ospina is set to make his first start Premier League start of the season in Saturday’s north London derby against Tottenham.
The Colombian No.2 has seen his action limited to cup competitions this season, but he replaced Petr Cech on 70 minutes against Everton on Saturday.
Cech picked up a calf problem and limped off at The Emirates and he is a huge doubt to face Spurs this weekend.
Cech, whose performances have been criticised in recent weeks, has kept nine cleansheets in 26 Premier League matches this season.
Arsene Wenger will give his No. 1 every chance to prove his fitness, but Ospina looks a likely starter at Wembley.
Ospina has kept five clean sheets in 10 cup appearances this season, but he has not made a league start for the Gunners since the 2-2 draw with Manchester City in April last year.