Santi Cazorla
The former Malaga man, who was played further up the pitch last campaign has been deployed as a central midfield far more often this season. He’s turned 30 and has been pivotal to Arsenal’s performances, creating a total of 34 chances, just second to Alexis Sanchez.
Mathieu Flamini scored a brace against Spurs in the previous round and has hardly been seen since. Cazorla has done a lot of talking with the ball and has racked up four assists, despite of being fielded as a central midfielder.
Aaron Ramsey and Jack Wilshere are already nursing their respective injuries and Wenger wouldn’t like to add to his woes by injuring another key cog in the wheel by playing Cazorla in every single game.