Manchester United boss José Mourinho hit back at Chelsea coach and a section of the Stamford Bridge support by insisting “Judas is still No1” at Chelsea as Manchester United’s defence of the FA Cup came to a halt at the hands of his former club.

The Portuguese was barracked by a section of the home fans in the east stand during a fractious tie with chants of “Judas”, “You’re not special any more” and “It’s all your fault”, the last a reference to Chelsea being out of European competition this season, The Guardian reports. Mourinho responded by pointing to the turf and holding up three fingers at his detractors, signifying the trio of Premier League titles he claimed in two spells in south-west London.

The United manager clashed with his opposite number following Mike Oliver’s decision to dismiss Ander Herrera for two bookable offences, the second caution relatively soft, with the fourth official, Mike Jones, twice forced to keep them apart on the touchline as emotions ran high.

“The fans can call me what they want,” said Mourinho, who was sacked in December 2015 with Chelsea, the title holders at the time, 16th in the Premier League but safely through to the Champions League knockout phase. “I am a professional. I defend my club. Until the moment [Chelsea] have a manager that wins four Premier Leagues for them, I’m the No1. When they have somebody who wins four Premier Leagues for them, I’ll be No2. For this moment, ‘Judas’ is No1.”