Per Mertesacker dark blue No.4 Arsenal v. Marseille Champions League match worn short-sleeved shirt, 2011-12, Nike, XL, with crew-neck collar and printed Arsenal badge, the reverse lettered mertesacker, the right sleeve with Champions League flash the left sleeve with UEFA Respect flash In the match against Marseille played on 19th October 2011, Arsenal defeated Marseille 1-0