FA Cup holders, Manchester United will face off with Premier league champions-elect Chelsea in the quarter finals of the FA Cup as the draw was held on Sunday.
Mourinho would be meeting his former side who are currently eight points clear on top of the league table and looks favourite to win the league.
The Manchester United boss has suggested that Chelsea could focus on the FA Cup tie as they are already champions.
United had to come from behind to see off Championship strugglers Blackburn in their fifth-round clash on Sunday, with goals from Marcus Rashford and substitute Zlatan Ibrahimovic cancelling out Danny Graham's opener.
The draw followed shortly after the full-time whistle and pitched Mourinho's men against his former club at Stamford Bridge - a first cup meeting between the teams since the same stage four years ago.
Chelsea edged that tie, winning 1-0 in a home replay after drawing at Old Trafford, and Mourinho suggested their eight-point lead in the league meant they could begin planning for a repeat performance now.
United, on the other hand hand, continue to balance a Europa League campaign, an EFL Cup final and their battle for the top four.
Mourinho initially offered 'no reaction' to the draw but could not resist an early start to the mind games.
'Probably Chelsea can only think about that (the FA Cup) because I think they are champions and they have nothing else to fight for,' he said in a clinical and brief press conference.
Full draw:
Chelsea vs Manchester United
Middlesbrough vs Huddersfield/Manchester City
Tottenham vs Millwall
Sutton/Arsenal vs Lincoln