Real Madrid and Barcelona pulled two points clear in La Liga when Cristiano Ronaldo set a club scoring record in Real's 3-0 stroll against Levante and Neymar hit four as Barca beat Rayo Vallecano 5-2 on Saturday.
Juventus defeated second-placed Lazio 2-0 at home on Saturday to take another huge step towards their fourth straight Serie A title and boost their confidence for Wednesday's crunch Champions League clash in Monaco.
Ahead of their high-profile clash on Saturday, check out the five standout clashes between Arsenal and Chelsea.
News of all that's transpired on and off the football field
Barcelona and Atletico Madrid led a Spanish Armada into the Champions League last 16 with home wins on Wednesday and in-form Aaron Ramsey steadied Arsenal's boat with a battling win against rocky Borussia Dortmund.
Chelsea heaped more Christmas misery on Liverpool with a 2-1 victory at Stamford Bridge and Olivier Giroud ended a seven-game scoring drought to help Arsenal win 1-0 at Newcastle United and return to the top of the Premier League on Sunday.
He increasingly looks like a manager unable to cope with the modern tactical realities of football. His display of a fear of failure has been appalling to watch. But Mourinho getting the sack at this juncture will hardly solve the problem, says Dhruv Munjal.
Rafael Nadal has withdrawn from the Paris Masters ahead of the tournament's start on Monday for "personal reasons", the French Tennis Federation announced on Friday.