Arsenal are in Europa League action on Thursday evening vs Bodo/Glimt.
The Gunners head into the game top of their group with six points, despite playing one game less than two sides.
Arsenal beat Bodo/Glimt last week and a similar result is expected on Thursday.
Ahead of the game, videos of Arsenal training have emerged and one key player is missing.
The man in question is Gabriel Jesus. Jesus has scored five and assisted three in the league this season for the north Londoners.
Losing Jesus for the Bodo/Glimt match would be somewhat of a blow, though Eddie Nketiah is expected to start up top in that match anyway.
The biggest blow for Arsenal would come if Jesus is unable to face Leeds United in the Premier League this weekend.
Arsenal are currently top of the Premier League after nine games, but Manchester City, who face Liverpool on Sunday, are hot on their heels.
So, losing their top striker would likely impact Arsenal a great deal. Mikel Arteta is expected to speak to the press on Wednesday evening when he will likely be asked about Jesus.