Arsenal won Group E in the UEFA Europa League on Thursday, with the Gunners defeating Qarabag 1-0 at the Emirates Stadium.
Chelsea had already confirmed their qualification as Group L winners, and played out a 2-2 draw away from home against Vidi.
AC Milan crashed out of the competition as they finished third in Group F. The Italian giants were well beaten at Olympiakos, suffering a 3-1 defeat. Real Betis topped the group and progress with the Greek side.
There was a slice of luck for Celtic who lost 2-1 to Red Bull Salzburg in Glasgow, but RB Leipzig's 1-1 draw against Rosenborg saw the Scottish champions progress with the Austrian outfit.