2018 ScheduleAll times ET
Arsenal will face Belarusian side Bate Borisov in the Europa League round of 32, while Chelsea have been drawn against Sweden's Malmo.
In a weekend headlined by Liverpool's emphatic win over Manchester United, Lionel Messi and Cristiano Ronaldo continued to make new records.
Arsenal right-back Hector Bellerin could miss the festive period after limping off with a calf problem during Sunday's 3-2 loss at Southampton.
Bernd Leno and Laurent Koscielny were culpable for Southampton's winner but Unai Emery must take responsibility for Arsenal's slow starts to games.
Ralph Hasenhuttl earned his first Premier League victory as Southampton took advantage of Arsenal injuries and mistakes at St Mary's.
Two goals from Henrikh Mkhitaryan had twice brought Arsenal back from a goal down, with Danny Ings striking twice for the Saints.
It's no secret Arsenal are looking for a new midfielder in the coming months - could it be Barcelona's Denis Suarez? Transfer Talk has the latest.
Shkodran Mustafi, Sokratis Papastathopoulos and Rob Holding are all unavailable, while Laurent Koscielny recently returned from injury.
"Support for a club should never include excessive aggression or discrimination towards the opposition," the Premier League said on Friday.
Saka made his first start for the Gunners on the left wing in a 1-0 Europa League win against Qarabag.
Unai Emery used a blend of youngsters and players returning from injury vs. Qarabag. In an otherwise dull match, Eddie Nketiah, 19, caught the eye.
Alexandre Lacazette's first-half goal gave Arsenal a 1-0 win over FK Qarabag in Europa League Group E action on Thursday.
|West Ham United||17||7||3||7||0||24|
|Brighton & Hove Albion||17||6||3||8||-4||21|