The Manchester United manager was the subject of 'f*** off Mourinho' chants from some sections of Blues fans at Stamford Bridge during the FA Cup quarter-final.
Chelsea's most successful manager then took it upon himself to provide a three-fingered salute, denoting the trio of Premier League titles he won in West London.
United went on to lose the war 1-0 but Jose got the better of this particular battle.
Check it out below, thanks to Metro journalist Sean Kearns' Twitter page:
Mourinho responds to chants of "f**k off Mourinho" from the Chelsea fans with a reminder of how many titles he won at the club #mufc#CFCpic.twitter.com/wNeXoCBjKJ
— Sean Kearns (@SeanPaulKearns) March 13, 2017