The Europa League game between Arsenal and FC Cologne on Thursday was postponed by one hour due to concerns over crowd safety, officials said.
Everton's awful start to the season continues as they get beat 3-0 by Atalanta who are currently 13th in Serie A.
Cedric Bakambu's strong effort restored Villarreal's lead as they prevailed 3-1 over Astana in Group A.
Cologne supporters are making the most of their first European match in 25 years against Arsenal.
Cologne fans are understandably excited about their return to European football and ahead of Thursday's clash with Arsenal, they were in good voice.
Everton boss Ronald Koeman says striker Wayne Rooney will feature in their squad to face Atalanta.