Kante decides tie in Chelsea's favour as FA Cup holders Manchester United are left to rue Herrera's first-half dismissal

Fourth official Mike Jones had to intervene as Conte and Mourinho had a frank touchline exchange during a feisty contest in which United had Ander Herrera sent off for two bookable offences after 35 minutes.

Kante’s second Chelsea goal six minutes into the second half secured a quarter-final win for the Premier League leaders, who won for a club record 13th successive home game.

Hopes of a double in Conte’s first season in charge remain alive.

Both Kante’s Chelsea goals have come against United, who have not beaten the Blues in 12 attempts, since October 2012.

Mourinho, whose side won the League Cup last month, had never previously lost a quarter-final in the FA Cup.

David de Gea made fine saves in quick succession to deny Eden Hazard and Gary Cahill and a smash and grab raid for United appeared possible.

But Herrera was dismissed for two fouls on Eden Hazard. United players surrounded referee Michael Oliver to complain, but captain Chris Smalling had been warned seconds earlier about repeated fouls on Hazard after one by Phil Jones.

Mourinho is Chelsea’s most successful manager and Conte spoke of his desire to emulate the self-proclaimed ‘Special One’ last Friday.

The Italian also asked for Mourinho’s history to be respected, but the United boss had to remind home supporters behind the visiting dugout of his three Premier League titles.

The apathy which greeted Mourinho in defeat last October – when his return was overshadowed by the 20th anniversary of the death of Matthew Harding – had turned to animosity.

The last time Mourinho was an FA Cup manager on this ground, Chelsea conceded a two-goal lead to lose to League One Bradford.

Marcos Rojo’s challenge from behind on Diego Costa set the tone while Jones was deployed as Hazard’s shadow.

In Marcus Rashford, who declared himself fit following illness to ensure United could field a recognised striker, the visitors had a potent weapon.

Hazard, sparkling this term as he did under Mourinho in their title-winning campaign together, attempted to make the most of the few occasions when Jones’s attention was diverted.

He turned Smalling, skipped by Rojo and his shot through Matteo Darmian was deflected, only for de Gea to turn the ball around a post.

De Gea made an even better save from the resulting corner, as Cahill held off Rojo and shot, only for the goalkeeper to intervene.

Paul Pogba and Kante had been within touching distance of each other throughout the first half. But a split-second lapse from Pogba was punished by his fellow France international six minutes after the break as Kante drilled the ball into the bottom corner from the edge of the area.

Thibaut Courtois saved from Rashford as United were denied an equaliser, while Chelsea three times went close to a second.