He was replaced by Mikel Merino at halftime, and Arteta confirmed that Gyokeres had suffered a slight injury.
In an interview with BBC Match of the Day, Arteta praised Gyokeres' performance, saying he had one of his best games with the team, but was forced to leave the field due to a muscular issue.
Arsenal maintains a seven-point lead at the top of the table as they prepare to face Slavia Prague in the Champions League on November 4.
