Name: Mertesacker: We must get up and stand up
Uploaded: 2015-09-29T23:13:51.375Z
Duration: 56 s
Description: Per Mertesacker tells BT Sport's Ray Stubbs that Arsenal must show what a great team they are against Bayern Munich. The Gunners have zero points from two Champions League matches and now face the German champions in back-to-back matches.