Jose Mourinho won the battle against Manuel Pellegrini, a manager that he doesn't see eye to eye with - and there are plenty of them - in the English Premier League on Sunday. Just 48 hours later, he comes up against another manager, who the Portuguese had a run-in with on quite a few occasions in the past.
Mourinho's infamous "voyeur" comment will still probably be ringing in Arsene Wenger's years, and during the Chelsea manager's first stint in the Premier League, the two great coaches of the game could not quite hide their dislike for each other.
Of course that rivalry would have sobered down quite a bit over the years, but one thing is certain -- the competitive juices will pump just that little bit more for both on Tuesday night in the Capital One Cup fourth round clash at the Emirates between.
Mourinho is not too happy with the scheduling of the Cup game, with Chelsea given just a day's rest, while Arsenal have had the advantage of having played on Saturday.
The Chelsea boss said there would be repercussions on such a decision, with Mourinho set to rest all of the players that started the match against Manchester City.
"We are going to give the game that the people who put the game on Tuesday want," Mourinho said. "If they want a big game, we cannot give a big game. If they want the players that were playing [against City], we cannot give them that.
"If they want us not to win a trophy, that's a help, because if they want a big game between two big teams in London they should put the game on Wednesday, not on Tuesday. I'm not going to give them that.
"We have to protect our players. We cannot put our players playing two matches in three days in October. They [Arsenal] played at 12.30 pm (BST) [on Saturday], so two and a half days to rest and prepare. So yes, I hope they all enjoy it. We are going to try and do our job, and we will do our job the best we can."
Mourinho also insisted he does not have any issues with Wenger anymore. "We have no problems," said Mourinho, before smiling and adding: "Unless you tell me that he had an influence on this (Scheduling). If you tell me that..."
Arsenal just about managed to get past West Brom on penalties in the previous round, while Chelsea had an easier outing against lower-league opposition Swindon. One thing is for certain, though, neither manager will want their sides to play more than the 90 minutes in this particular fixture.
Team News: With Arsenal flying high in the Premier League, and a key matchup against Liverpool coming up at the weekend, Wenger will also rest several of his key players, giving the bright youngsters at the club a chance to prove their mettle against some tough opponents.
Mikel Arteta is suspended after picking up a red card against Crystal Palace, with Wenger revealing he would not be appealing the decision, while Mathieu Flamini is ruled out with a groin problem. The usual long-term suspects - Theo Walcott, Alex Oxlade-Chamberlain, Lukas Podolski, Yaya Sanogo and Abou Diaby -- remain out, but Wenger also has worries over Serge Gnabry, who signed a new long-term contract on Monday, but has an ankle knock.
"Serge Gnabry has a problem, he got a kick on the ankle," Wenger said, while revealing last round goalscorer Thomas Eisfeld is also a doubt. "He will be assessed tomorrow (Tuesday). After that we will decide who plays and who doesn't play. I will decide [on Tuesday]."
Wenger, who will also be without promising youngster Gedion Zelalem, said Ryo Miyaichi and Isaac Hayden would definitely play, while also giving the reasons behind his decision to give the latter, who made his debut in the third round clash against West Brom, another opportunity.
"I like his strengths in the duels," Wenger told Arsenal Player. "I like his capacity of concentration and I believe as well that technically he is very focused to do well. He is committed and at half-time [in West Brom game] I told him to behave well because he was on a yellow card and he did that well in the second half.
"He is maybe not a creative player but everything he does is intelligent. I like his intelligence and all these qualities together makes me choose him."
Mourinho is likely to give Juan Mata and David Luiz starts against Arsenal, after the experienced duo were unused substitutes in the City game. Such is the strength of the squad at Chelsea, that despite resting the entire XI that played on Sunday, Mourinho will still have plenty of full internationals to choose from, with only Marco Van Ginkel on the injury list at the moment.
Key men: Arsenal: With Olivier Giroud likely to be rested, the onus will be on Nicklas Bendtner to finally sparkle on the big stage for Arsenal. They don't come much bigger than a match against Chelsea, even if only in the Capital One Cup, and the Danish international can cement his place in the Arsenal first team with an assured performance and maybe a goal or two.
Chelsea: Juan Mata will want to prove he belongs in the starting Premier League XI, and the Arsenal defenders will need to be alert to the threat posed by the Spaniard.
Where to watch
The match is scheduled for a 1.15 p.m. IST start on Wednesday early morning, with live telecast on Ten Action.
Expected lineups: Arsenal: Fabianski; Jenkinson, Mertesacker, Vermaelen, Monreal; Hayden, Wilshere; Gnabry, Rosicky, Miyaichi; Bendtner.
Chelsea: Schwarzer; Azpilicueta, Luiz, Cahill, Bertrand; Essien, Mikel; Willian, Mata, De Bruyne; Ba.
Prediction: 2-1 to Chelsea