Lucas Perez could be out for up to three weeks with a thigh injury, according to Goal.com.
The Spaniard missed Saturday’s defeat to West Bromwich Albion at the Hawthorns and looks set to also sit out the matches with Manchester City and West Ham United.
While the summer signing from Deportivo La Coruna has only made two starts in the Premier League this season his absence could be compounded by the problem picked up by Alexis Sanchez yesterday.
Arsene Wenger described the Chilean’s ankle as being in a ‘terrible state’ following a horrible challenge by James McClean and there are fears he could have suffered ligament damage.
If that’s the case the striker will miss his country’s crucial World Cup qualifier against Argentina in Buenos Aires in four days time and potentially further domestic fixtures after the Interlull.
Arsenal are also awaiting news on Petr Cech’s injury. The veteran keeper went down in the 38th minute and was replaced by David Ospina.