Passion pit: an FC Copenhagen fan lights up a flare during the Danish team’s Europa League match againstSlavia Praha at the Eden Stadium in Prague, Czech Republic, yesterday. The match ended goalless(Photograph by Petr David Josek/AP)

Chelsea's Oliver Giroud celebrates scoring his side's first goal during the Europa League group L soccer match between Bate and Chelsea at the Borisov-Arena in Borisov, Belarus, Thursday, Nov. 8, 2018. (AP Photo/Sergei Grits)