The Red Devils head into the game looking to return to winning ways after the disappointment of their goalless draw with Hull City at Old Trafford in midweek.
Manchester United have it all to do to claw themselves back into the race for Champions League qualification, with the Red Devils currently sixth in the table and 14 points behind leaders Chelsea.
And Mourinho is expecting a difficult encounter when his Manchester United team head to the King Power Stadium to take on the defending champions on Sunday afternoon.
Speaking at his pre-match news conference on Friday, Mourinho said: “It’s a very difficult match for us and I think also a very difficult match for them.
“But total respect for what they did and total respect for the change of life they are experiencing.
“I think next season will be much better for them again.”
Manchester United are aiming to break back into the top four this season after they ended up fifth last term under Louis van Gaal before winning the FA Cup.
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