The fearful hush that descended over the Emirates when Danny Welbeck landed in overwhelming pain never really lifted on a challenging night for Arsenal. The Europa League had all been going smoothly, with maximum points and the booster of a win in what always looked like their trickiest assignment in the away match with Sporting. But the mood darkened when Welbeck suffered the latest in a desperately unlucky series of dismal injuries.
The cold statistics of the night were favourable to Arsenal, who still managed to qualify for the knockout round with two games to spare and managed to extend their undefeated sequence to 15 matches. But this was not an evening that will be remembered with fondness as the fate of Welbeck dominated the mind of everyone associated with Arsenal.