uring his time as Paris Saint-Germain coach, Thomas Tuchel has found it very difficult to manage two superstar egos in the dressing room.
While Neymar and Kylian Mbappe get on well on and off the pitch, they clash in other areas of football.
They both want to take penalties and freekicks and be the team's top goalscorer, while they're also both obsessed with winning the Ballon d'Or.
That's why PSG are willing to let Neymar go.
A team needs its key players, but it also needs them to put the team first.
"If anyone has to leave, we will sort it out," Tuchel said three weeks ago.
Selling Neymar would allow Mbappe to be the star.