The 22 year-old has been barely playing under Mourinho despite being considered a regular first team starter at the start of the season.
But now as the Winter summer transfer window approaches, De Bruyne will most likely leave the club on loan in order to secure a spot in the national side for the World Cup.
Atletico Madrid is the team who look most likely to take the former Werder Bremen loanee with countrymen Toby Alderweireld urging the future star to move there.
And he would slot into the side perfectly if Koke was to leave in January with the latter rumoured to be making a Premier League move after scintillating form over the past couple of years.