Per Mertesacker of Arsenal clears the ball during their game with Schalke
Santi Cazorla of Arsenal shoots during their game with Schalke
Schalke's Dutch midfielder Ibrahim Afellay (L) reacts as he is booked
Schalke's German midfielder Lewis Holtby (R) vies with Arsenal's Spanish midfielder Mikel Arteta (L)
Ibrahim Afellay of Schalke 04 goes past Carl Jenkinson and Santi Cazorla
Ibrahim Afellay of Schalke 04 is challenged by Vito Mannone of Arsenal
Ibrahim Afellay of Schalke 04 takes on Aaron Ramsey of Arsenal during
Benedikt Howedes of Schalke 04 tackles Andre Santos of Arsenal
Gervinho of Arsenal battles with Joel Matip of Schalke 04
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