Arsenal could be set to have another defender on the sidelines after Shkodran Mustafi limped off during Germany's final World Cup Qualifier.
The 25-year-old centre-back, who started six of the Gunners' matches this season, was withdrawn in the first half of the 5-1 win against Azerbaijan clutching his groin and thigh area.
Mustafi pulled up and went to ground in the build-up to Azerbaijan's equalising goal, and needed treatment before leaving the field in the 36th minute. He was replaced by Mattias Ginter.
Arsenal's next match is against Watford on Saturday October 14 and, with Laurent Koscielny and Calum Chambers both nursing knocks, Mustafi also appears to be a doubt for the evening kick-off at the Emirates.