The report claims that Perez, who was left out of the squad for the trip to West Brom, is now set for a spell on the sidelines due to the injury.
While the international break means Arsenal have a short break from Premier League football, Perez is still expected to miss the games against Manchester City and West Ham.
The news will be a further blow to Arsene Wenger who saw Petr Cech and Alexis Sanchez pick up injuries in the defeat at the Hawthorns.
Mesut Ozil is also struggling, with the Germany international ruled out of Saturday’s game due to a hamstring injury.
The injuries to key players come at a particularly bad time for Arsenal with the club on an awful run of form that i...