Bukayo Saka could be in doubt for both facing Brentford in the Carabao Cup in midweek and for Saturday's Premier League clash against Bournemouth after missing training on Tuesday.
The England starlet was a lynchpin in Arsenal's hardy north London derby clash against Tottenham on Sunday, scoring from the penalty spot in the second-half.
But when he was substituted in the dying moments of the weekend tie, it was with some difficulty that he made his way off the pitch at the Emirates.