Eddie Nketiah faces a late fitness test to see if he will be available for Arsenal's Champions League clash with Sevilla, after missing training on Tuesday.
The 24-year-old picked up a knock during Arsenal's first Premier League defeat of the season to Newcastle on Saturday.
Nketiah, after scoring a hat-trick a week prior at Sheffield United, was taken off with just over ten minutes to go against the Magpies on a disappointing day for the Gunners.
There are concerns that the Gunners could be light in attack on Wednesday night, with Gabriel Jesus already out of action.