Arsenal's fans had waited nine long months to return to the club's north London stadium but the 2,000 people sprinkled across the red seats had to wait only nine minutes to enjoy the thrill of celebrating a goal in the flesh again on Thursday.
Belgian league leaders Antwerp secured a shock 1-0 win over Tottenham Hotspur and AC Milan extended their unbeaten run to 23 games as they won 3-0 against Sparta Prague in the Europa League on Thursday, while Arsenal cruised to a 3-0 win over Dundalk.
New Liverpool boss Juergen Klopp made it three wins from his last three matches with a 1-0 success at Rubin Kazan in Russia that left them second in Group B, two points behind Swiss club Sion on Thursday.