Jose Mourinho has revealed what really happened after his touch-line bust-up with Nemanja Matic in 2015 and how he knew the midfielder was so mentally strong.
The Serbian, who was instrumental in Mourinho's second spell in charge of Chelsea, suffered the ultimate embarrassment in a match against Southampton two years ago.
After coming on as a second-half substitute, Mourinho then hauled the midfielder off less than 30 minutes later, much to the dissatisfaction of the player.
But it appears the way Matic reacted to the public embarrassment has stayed with the now Manchester United boss.