Jose Mourinho has vowed to play it cool in Sunday's crucial game against Chelsea, despite emotions running high in two tempestuous meetings with his former club this season.

The Manchester United manager clashed with Antonio Conte in his team's defeats at Stamford Bridge last month and in October, when he accused his Chelsea counterpart of "humiliating" him with his touchline antics at the end of a 4-0 thumping.

Mourinho also hit back at the Chelsea fans who had taunted him with chants of "Judas" during United's 3-1 FA Cup quarter-final defeat by claiming "Judas will be No. 1" at Stamford Bridge until someone matches his record of delivering three Premier League titles for the club.

But Mourinho has vowed to keep any emotions in check at Old Trafford as he bids to keep United's top four hopes alive and kicking against the runaway Premier League leaders.

"You say that word emotion," Mourinho said. "For me, it is just a game. One more game. No difference for me, not at all."