Unai Emery has received a major injury boost with six Arsenal players back in full training ahead of the West Ham clash this weekend.
Hector Bellerin (left calf), Laurent Koscielny (back spasm), Dinos Mavropanos (groin), Shkodran Mustafi (right hamstring), Nacho Monreal (right hamstring) and Mesut Ozil (left knee) all look set to be available, according to the Gunners.
Henrikh Mkhitaryan (right foot) is expected to be back in full training next month, though Rob Holding (left knee) and Danny Welbeck (right ankle) remain long-term absentees.
Emery lost Koscielny in the warm-up before the FA Cup third round win over Blackpool, preferring not to risk the French centre-back.
Arsenal will hope to keep pace or close the gap on Chelsea as they continue their quest for a top four finish.
The Blues are currently three points clear with the sides facing off against each other at the Emirates a week on Saturday.
Emery will also hope to strengthen his squad in the meantime during the January transfer window with Denis Suarez wanted on loan with an option to buy.
The Barcelona midfielder's contract runs out in 2020 and with his first team minutes limited, a move is now a distinct possibility.
