Arsenal could receive a boost with the news that Kieran Tierney may be available for their Europa League tie with Benfica.

The Gunners have a vital European game on Thursday, given the Europa League may present their only chance of reaching the Champions League next season.

Left back Tierney has been out with a leg problem for the past six matches, and is now back in training. Arsenal released a video of the team training ahead of the game, and Tierney was seen in the footage.