Kevin De Bruyne
Kevin De Bruyne is another player that Mourinho let get away.
He is arguably one of Manchester City’s best players and is an integral part of Pep Guardiola’s side.
De Bruyne joined Chelsea from Belgian side Genk in January 2012. He was soon loaned out to Werder Bremen of the Bundesliga.
The midfielder returned to Chelsea the next season but only made nine appearances for the Blues.
Mourinho claimed that De Bruyne was not motivated and was “crying every day he wants to leave”.
He then added,
"With De Bruyne, if you have a player knocking on your door and crying every day he wants to leave, you have to make a decision. At that time, Chelsea did well. If De Bruyne stayed here, not happy and not motivated, and we’d sold him after a year, we’d have got less – 50 per cent less than we sold him for. But, if he was at Chelsea and not at Wolfsburg, he wouldn’t have reached this level. It was like a wall, a block. He was not ready to compete. He was an upset kid, training very bad."
In the end, De Bruyne was sold for £18m in January 2014 to Wolfsburg.
18 months later De Bruyne returned to the Premier League with Manchester City in a £55m deal. Since then, he has been making Chelsea fans ask themselves why Mourinho ever sold the Belgian.