Emile Smith Rowe missed Arsenal training on Wednesday ahead of the Gunners' opening Europa League group stage match against FC Zurich, Football.london understands.
The Hale End academy graduate seemed to injure himself in a post-match warm-down after Arsenal's 3-1 defeat against Manchester United on Sunday. Smith Rowe was used as a second-half substitute in that match, which still required him to train once the final whistle had blown.
Cedric Soares was another surprise exclusion from the side too. The Portuguese international was on the bench as an unused substitute on Sunday.
