It wasn't quite the return to Stamford Bridge Jose Mourinho would have been hoping for before kick off.
The Manchester United manager couldn't hide his frustration as a Chelsea team, which featured many of the players he worked with and brought to the club, stormed to a 4-0 victory on Sunday afternoon.
Mourinho's side were second best in almost every department as goals from Pedro and Gary Cahill gave the Blues an early lead and the home team were in complete control from the first whistle.
So we've had a look at the game's six key figures in the form of three stars and three flops - you might notice a theme...
The Spaniard might not have even been in the starting XI had Willian's mother not passed away recently but he is making the most of his opportunity.
Pedro was quick to capitalise on Man United's very sleepy defence to bypass David de Gea and calmly slot home after just 30 seconds.
In Conte's new system, the former Barcelona winger has a lot more freedom and has shown just how influential he can be when he isn't having to worry as much about defending.
Hazard looked back to his very best against his former manager and the way he took his goal was reminiscent of his performances from two seasons ago.
Like Pedro, Hazard is thriving in a 3-4-3 and when he is given a free licence to roam, the 25-year-old is definitely one of the best players in the league.
Whenever Kante gets on the scoresheet, it's a special moment.
The way he waltzed past Chris Smalling to score Chelsea's fourth makes you wonder why he doesn't find the back of the net more often.
Elsewhere on the pitch, it was another typical Kante performance - understated, simplistic, yet completely sublime.
Smalling has arguably been the Red Devils' most consistent defender over the last 18 months but he had a game to forget at Stamford Bridge.
The centre-back was slow to react to Marcos Alonso's ball for the first goal and he let Cahill drift behind him at a corner for the second.
The way Kante absolutely mugged him off for the fourth goal wasn't great either.
Those were the sort of errors he used to make fairly regularly during the early stages of his career and he will be extremely disappointed with his performance.
Blind is another who has been mightily impressive under Mourinho so far this season but it was a terrible day at the office for the Dutchman.
His poor positioning allowed Pedro to race through and score with less than a minute on the clock.
But he was uncharacteristically unassured at left-back before joining Smalling in the middle after Eric Bailly picked up an injury during the second half.
The big Belgian had redeemed himself in the eyes of many supporters with a strong performance at Anfield on Monday but it was another poor display against Chelsea.
His wayward positioning often left Ander Herrera exposed in midfield and he had virtually no impact on proceedings.
Mourinho had seen enough from the first 45 minutes to replace Fellaini with Juan Mata during the interval but the damage had already been done.
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