Former Liverpool captain Steven Gerrard has said he will be keeping a close eye on whether the English Premier League punishes Manchester City.
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The 29-year-old joins after a successful spell on trial at Rangers in November.
Celtic have said they are "extremely disappointed" about Ryan Christie's three-match ban for grabbing Rangers' Alfredo Morelos by the genitals.
Alfredo Morelos was sent off as Rangers won the Old Firm derby 2-1 to reduce Celtic's lead at the top of the Scottish Premiership to two points.
Manchester United were drawn against Belgian side Club Brugge in the Europa League round of 32, while Arsenal will meet Olympiakos.
Celtic had goalkeeper Fraser Forster to thank as they withstood heavy pressure to beat Glasgow rivals Rangers 1-0 in the Scottish League Cup final.
Jermain Defoe was involved in a car crash after Scottish side Rangers' win against Aberdeen at Ibrox on Saturday but was not seriously injured.
Celtic kept their 100% record and took the SPL title initiative with a 2-0 win at Steven Gerrard's Rangers in the Old Firm derby.
The Old Firm Derby, between Glasgow's Rangers and Celtic, isn't traditionally one for Nigerian fans to note, but Joe Aribo's arrival changed that.
Rangers manager Steven Gerrard has been handed a one-match touchline ban after accepting a charge of misconduct following Sunday's 2-1 defeat.
Morelos was shown a red card for elbowing Celtic captain Scott Brown in an off-the-ball incident with just half an hour gone at Celtic Park.
Celtic grabbed a late winner as they beat 10-man Rangers 2-1 in the Old Firm Derby to go 13 points clear at the top of the Scottish Premiership.
Rangers captain James Tavernier was confronted by a fan who was subsequently arrested in an incident during the team's draw with Hibernian.
Steven Gerrard said after Rangers were awarded four penalties in Saturday's 4-0 win over St Mirren that his team should have had five spot kicks.
United States defender Matt Polster has joined Scottish club Rangers from the Chicago Fire.
Bournemouth's Jermain Defoe has completed an 18-month loan move to Rangers in a move that reunites him with former England teammate Steven Gerrard.
Rangers beat Celtic 1-0 to move level on points with their Old Firm rivals at the top of the Scottish Premiership.
The official, who was standing in front of the away supporters, was treated for a cut to the back of his head.
Steven Gerrard left as Liverpool's under-18s coach to take charge of Rangers, and Jurgen Klopp has been pleased with the start of his tenure.
Celtic have promised a full investigation after five people were injured trying to get into Celtic Park for the Old Firm derby on Sunday.
Olivier Ntcham's 62nd minute strike was enough for Celtic to beat Rangers and send Steven Gerrard home empty-handed in his first Old Firm derby.
Burnley's European adventure came to an end on Friday as the Premier League side crashed out of the Europa League playoff round with a 1-1 draw.
Rangers winger Jamie Murphy will miss the rest of the season after suffering a knee ligament injury, manager Steven Gerrard said on Wednesday.
Steven Gerrard said artificial turf has no place in "elite football" after seeing one of his Rangers players injured in a game at Kilmarnock.
Rangers boss Steven Gerrard said his team "won't get carried away" with first-leg Europa League lead over Maribor.