Tottenham were held to a 3-3 draw by LASK in the Europa League, with Jose Mourinho saying the only positive was progress to the last 32.
Arsenal manager Mikel Arteta said midfielder Thomas Partey will train with the rest of his squad ahead of Sunday's clash with Tottenham.
The return of Arsenal fans helped striker Alexandre Lacazette end a recent goalscoring drought against Rapid Vienna in the Europa League.
Scott Arfield struck the winner as Rangers earned a hard-fought 3-2 win over Standard Liege in the Europa League.
Milan responded in style to going 2-0 down against Celtic on Thursday, much to the delight of head coach Stefano Pioli.
Arsenal secured top spot in Europa League Group B as Alexandre Lacazette scored a stunning goal in a 4-1 win over Rapid Vienna.
Tottenham were far from their best at LASK and had to settle for a 3-3 draw, which was still enough to reach the Europa League's last 32
Leicester City would have finished top of Group G with a win, but instead will need to beat AEK Athens next week to secure top spot.
Jens Petter Hauge scored one and created another as Milan sealed their place in the Europa League knockout stages.
Tottenham and Wales forward Gareth Bale scored his 200th career goal as he equalised for Spurs against LASK in the Europa League.