Bukayo Saka left the field with an injury in the 53rd minute during the collision of Arsenal with Leeds on Saturday afternoon, so that Mikel Arteta left a threatening concern for the trip from his side to Anfield next weekend.
Saka went down for a moment after the hosts scored their third goal against the visitors, thanks to Blockbuster Summer Signing Viktor Gyokees.
The international of England stopped on the field and was briefly cared for by medical staff before he signaled to his manager that he should be replaced.
Before Saka left the field, Saka had scored the second of Arsenal, with the Gunners in Cruise Control thanks to a 4-0 lead in the second half of the Emirates.