Overview
- Manager Mikel Arteta confirmed Gyökeres will not travel for the Champions League match against Slavia Prague.
 - Arteta said the forward has not trained and described the issue as muscular, with further tests and scans scheduled in the coming days.
 - Gyökeres left Saturday’s win over Burnley at the interval after scoring, prompting immediate assessment by the club’s medical staff.
 - Arteta noted the player is very disappointed and voiced concern because muscular problems are unusual for him.
 - The summer signing from Sporting CP has been influential this season, and data cited from Transfermarkt highlights his historically low number of injury-related absences.