Mourinho vows to be on best behaviour at Stamford Bridge

FILE PHOTO: Soccer Football - Champions League - Group Stage - Group H - Manchester United v Valencia - Old Trafford, Manchester, Britain - October 2, 2018 Manchester United manager Jose Mourinho after the match REUTERS/Phil Noble/File Photo

(Reuters) - Manchester United manager Jose Mourinho has promised to show plenty of restraint and respect if he inflicts a first Premier League defeat of the season on his former side Chelsea on Saturday.

Mourinho, who had two spells in charge of the London club and led them to three league titles, has not enjoyed previous meetings with Chelsea as United boss, losing four out of six matches including this year's FA Cup final.