Manchester United manager Jose Mourinho says he will not “celebrate like a crazy kid” if his new team score against his former club Chelsea.
Sunday’s Premier League fixture is only Mourinho’s second trip to Stamford Bridge as an opposition boss.
He won there with Inter Milan in 2010, before his second spell with the Blues in which he added a third league title to his trophy haul in west London.
“I have the maturity to control the emotion,” said Mourinho.
“If my team score a goal am I going to celebrate like a crazy kid? No.
“Am I going to have a negative reaction if the crowd has something negative with me? No.”
Sunday will be Mourinho’s first appearance at Stamford Bridge since he was sacked in December 2015, with the club 16th in the Premier League.
It is also the first time he has been back since Mourinho settled a discrimination claim with former Chelsea physio Eva Carneiro, following the Portuguese’s furious reaction to her going on the pitch to treat Eden Hazard in a game against Swansea in August 2015.
“When some managers leave clubs, they like to ‘wash the dirty clothes’, to go back and speak and speak and speak about what happened.
“I leave clubs with a very good feeling. I gave everything to the club. I want to keep the good memories – and at Chelsea I had so many.
“The other things – I don’t forget, I keep. But I keep it to myself.”
‘Mourinho deserves a good reception’
Chelsea manager Antonio Conte says his counterpart should be given a warm welcome when he arrives at Stamford Bridge.
The Italian was appointed Mourinho’s permanent successor in April and began his job in July.
“I have great respect for him,” said Conte.
“He won three championships and I think he was an important man for the club.
“I think he deserves a good reception, because he wrote with the club, with his players, with the staff part of the story of this club.”