25/10/2013 10:57 BST

Sport Pictures Of The Week

Borussia Dortmund's fans hold up scarves before the UEFA Champions League Group F football match between Arsenal and Borussia Dortmund at the Emirates Stadium, north London, on October 22, 2013. AFP PHOTO/ADRIAN DENNIS (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)

As someone observed, Old Trafford introduced a singing section on Wednesday night 24 hours after the Emirates hosted its own singing section, where every supporter seemed to be clad in yellow.

Borussia Dortmund's "Yellow Wall" leads the way in sport pictures of the week...

Sport pictures of the week