Jose Mourinho's time as Manchester United manager will largely be remembered for his strained relationship with Paul Pogba.
From the get-go the two have been at each other's throats, with Mourinho regularly slamming Pogba in the media for his performances and attitude.
Some of what the Portuguese has said over the past two-and-a-half years has been justified, but other times he's been unnecessarily harsh.
Mourinho and Pogba came to blows numerous times in training ground bust-ups but things took a turn for the worse in September.
Footage emerged of manager and player enduring a frosty exchange in training that led to Mourinho requesting that Pogba was removed from training.
It stemmed from Mourinho demoting Pogba as United's vice-captain prior to their embarrassing Carabao Cup defeat at home to Derby County.
He then said in a press conference: "The only truth is that I made the decision for Paul - not to be the second captain any more.
"It was exactly the same person who decided Paul was the second captain - myself. No fallout at all, just decisions I do not have to explain."
From that moment Mourinho and Pogba's relationship was over and now The Sun have made a revelation about the meeting they had about the vice-captaincy.
In the meeting, Mourinho urged his midfielder to follow in the footsteps of Chelsea legend Frank Lampard, who he regards as the perfect role model.
But rather than take Mourinho's advice seriously, Pogba arrogantly responded by asking if Lampard had won the World Cup like he did with France in the summer.
It was then that Mourinho realised Pogba was 'impossible to work with', which explains why their relationship completely deteriorated.
Mourinho was trying to help the 25-year-old by using Lampard as a template, but Pogba showed the kind of person he is by fuelling his own ego.