Wenger rues latest injury blows
Arsenal's injury problems worsened on Saturday when Francis Coquelin and Mikel Arteta limped out of the disappointing 2-1 defeat at West Brom.
Coquelin picked up a knee injury after only 14 minutes at The Hawthorns while Arteta, who replaced the French midfielder, had to be substituted himself just after half time.
Gunners boss Arsene Wenger said: "We have two more injuries. One is a muscle problem for Arteta, and the other one is a knee problem for Coquelin."
Arsenal already have a string of injury problems, with Jack Wilshere, Aaron Ramsey, Theo Walcott, Alex Oxlade-Chamberlain, Danny Welbeck and Tomas Rosicky all sidelined.
Wenger's side host Dinamo Zagreb in the Champions League on Tuesday night before travelling to face Norwich City in the Premier League next Sunday.
Arsenal can be backed at 6/1 to beat Dinamo Zagreb 2-0 and revive their hopes of qualifying for the last-16 of the Champions League and can currently be backed at 2/1 to win the 2015/16 Premier League title outright despite Saturday's setback against Tony Pulis' side.
Wenger said of the defeat to the Baggies: "It was a bad afternoon. We missed a penalty, we gave a goal away on a set-piece, that is perfect to make your afternoon a nightmare and we missed open goal chances."
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