Jose Mourinho has never taken losing particularly well.
For a long time, he didn't have to, at least not very often.
Between 2002-2011, the Portuguese didn't lose a single home league game across spells with Porto, Chelsea, Inter Milan and Real Madrid.
Sure, there was the odd outburst regardless. Yet it was his during his three-year stint at the Bernabeu when many outsiders feel he started to unravel.
While Mourinho led Los Blancos to the La Liga title in 2012, the pressure of managing such high-power players, combined with the unforgiving scrutiny of the Spanish media, seemed to get to him.
There were a number of sticks the press decided to beat him with, and one of them was his failure to win the Champions League with the club.
Mourinho ultimately came up short in his quest for European dominance, despite a squad boasting the likes of Cristiano Ronaldo, Kaka and Sergio Ramos.
But the trio all let him down, missing from the spot as Real were knocked out on penalties by Bayern Munich at the semi-final stage in 2012.
The Spanish giants had looked like the best team in Europe that season and many would have backed them to go on and beat Mourinho's old side, Chelsea, in the final.
Instead, they were left licking their wounds - and Mourinho was so upset by the loss he was reduced to tears.
"Cristiano, Kaka, Sergio Ramos. They are three monsters of football, there is no doubt about that. But they are also human. That night is the only time I have ever cried after a football match," he told Marca.
"I remember it well: me and Aitor [Karanka] parked in the car in front of my house, crying. It was very hard to take because in that 2011-12 season we were the best team in Europe.
"We had a very clearly defined playing identity. We were always very well organised defensively above anything else on the pitch and everyone knew exactly what they had to do.
"There was also lots of discipline and organisation behind that team's game. And we were capable of making transitions that were very explosive, quick and direct towards the objective, always looking towards the goal with connections that were almost unstoppable.
"They were great players who played like a true team. In the end, that was the key to everything."
Real did go on to win La Liga with 100 points, so the season wasn't wasted.
Even so, the fact Mourinho was left in tears after the Champions League semi-final sums up how much he was hurt by Madrid being overcome in Europe.