Chelsea remained firmly on course for a domestic Double as N’Golo Kante’s second-half winner settled a stormy FA Cup quarter-final meeting with Manchester United at Stamford Bridge.
United manager Jose Mourinho was involved in touchline clashes with opposite number Antonio Conte and was verbally abused by Chelsea fans at the scene of many of his triumphs, including three titles.
The Portuguese was furious when midfielder Ander Herrera was sent off 10 minutes before half-time after a second foul on Eden Hazard, and the managers were kept apart moments later after Marcos Alonso tumbled to the floor after being brought down.
Kante’s low 51st-minute drive finally beat defiant United keeper David de Gea, who saved superbly from Hazard and Gary Cahill before the break to keep Mourinho’s side in contention before Chelsea made the breakthrough.
Marcus Rashford, who came off his sick bed to play – with Zlatan Ibrahimovic suspended, and Wayne Rooney and Anthony Martial injured, created United’s best chance for himself but Chelsea keeper Thibaut Courtois saved with his feet to set up a semi-final against Tottenham at Wembley.
Mourinho’s first return to Stamford Bridge after he was sacked as Chelsea manager ended in humiliation with a 4-0 defeat in October – and every piece of his body language here spoke of a man intent on putting matters right.
He was pacing his technical area from the first whistle, applauding, imploring and cajoling his team, stripped of talisman Ibrahimovic as well as Rooney and Martial.
With Mourinho in fired-up and combative mood, it was almost inevitable he would clash with his equally passionate and animated Stamford Bridge successor.
The flashpoint came seconds after Herrera’s sending-off. Mourinho, still simmering, felt Alonso had dived, the Portuguese exploding in fury – soon to be joined by Conte in a head-to-head bout of bad blood that ended with the pair being separated and, in boxing parlance, being sent to their corners by fourth official Mike Jones.
It was a feud that bubbled throughout, with Conte reacting angrily in the second half when Mourinho kicked the ball along the touchline too close to the Chelsea manager for his liking.
The players seemed to take a cue from their managers through a series of tetchy clashes, one of which could lead to further action against United defender Marcos Rojo for an apparent stamp on Hazard.
Mourinho certainly did not feel the love on his return to the place where he enjoyed so much success, responding to four-letter abuse from Chelsea’s fans behind his technical area by raising three fingers to signify the Premier League titles he won at Stamford Bridge.
The Portuguese was also taunted with chants of “Judas” – even though he was sacked by Chelsea a year last December.
He will feel a sense of injustice at Herrera’s red card and frustration at Ibrahimovic’s suspension – but the unpalatable truth for Mourinho is the team he left behind is currently far superior to the one he now guides.