Arsenal's Francis Coquelin could be replaced - Arsene Wenger
Arsenal manager Arsene Wenger says he will "do what is needed" in the January transfer window after French midfielder Francis Coquelin was ruled out for at least three months.
Coquelin, 24, was injured during his side's 2-1 defeat by West Brom at The Hawthorns on Saturday.
Arsenal are without midfielders Alex Oxlade-Chamberlain, Mikel Arteta and Jack Wilshere for their home Champions League league match against Dinamo Zagreb on Tuesday.
Watch 5 live Final Score for live commentary of Arsenal v Dinamo Zagreb, Tuesday 24 November, 18:30 GMT on the BBC Red Button and the BBC Sport website.