Dortmund's German goalkeeper Roman Weidenfeller (R) dives at full stretch but fails to reach a strike from Arsenal's Chilean striker Alexis Sanchez (unseen) for Arsenal's second goal during the UEFA Champions League Group D football match between Arsenal and Borussia Dortmund at the Emirates Stadium in north London on November 26, 2014. AFP PHOTO / BEN STANSALL        (Photo credit should read BEN STANSALL/AFP via Getty Images)