Jose Mourinho avoided coming to blows with Antonio Conte this time around at Stamford Bridge, despite failing to shake hands after Chelsea's 1-0 win over Manchester United.
When the two sides last met at Stamford Bridge in the Premier League, the United boss voiced his displeasure at Conte in Italian in the dugout after the Blues' 4-0 hammering of the Red Devils.
But while Mourinho, again, suffered defeat away to his former club, there was no apparent major animosity between the two managers this time around.
The pair have, indirectly at times, exchanged a war of words during a number of press conferences this season and many anticipated another bust-up on the touchlines this year.
However, there was little room for complaint from Mourinho, with 21-year-old Chelsea defender Andreas Christensen having expertly kept Romelu Lukaku quiet in front of goal.
Cesc Fabregas' substitution and Marouane Fellaini's arrival did spark some danger from United, as the Belgian forced a fine flying save from Thibaut Courtois.
Chelsea's perfect response to UCL defeat
But, overall, Chelsea responded brilliantly to their 3-0 defeat at the hands of AS Roma in the Champions League during the week.
Alvaro Morata's excellent header turned out to be the difference, as both teams played entertaining end-to-end football, rather than Mourinho opting to go defensive away from home.
But despite the positive manner in which the Portuguese entered the game, it is now 11 league matches away from home without a win against the 'big six'.
That includes the failure to score in nine of the last ten of those matches, with United having now fallen eight points short of league leaders and local rivals Manchester City.
"We are worried (about the gap with City), but there are 18 teams more worried than us - because we are second," Mourinho said, following the match.
Mourinho would have been forgiven for making a swift exit from the dugout. However, ironically, it was Conte who made a brisk departure at the full-time whistle, causing another talking point.
The Italian's swift exit meant he failed to shake hands with Mourinho but Conte refused to get too caught up in the issue.
Mourinho's funny reaction to handshake snub
"It's not important, you have to earn respect on the pitch, not outside of it," said Conte.
But Mourinho's reaction was far more amusing.
"You want me to chase him into the middle of the pitch?" said Mourinho "I was there, I shook hands with people who were there."
It feels inevitable this managerial rivalry is only going to get bigger.
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