Mikel Arteta will make late calls on Alexandre Lacazette and Kieran Tierney's availability for Arsenal's huge Europa League tie against Villarreal.
The duo, who have both been out injured, took part in full training on Tuesday ahead of Thursday's second leg.
Arsenal, who lost the away leg 2-1, are optimistic Lacazette will be able to make the bench after missing the last three games with a hamstring injury suffered against Fulham last month.
Tierney is a bit further away from match fitness having been sidelined since the start of April with a knee injury though Arteta is weighing up whether to include the left-back in his squad and have him available for a late cameo if required.