Jose Mourinho has cut a terse figure in preseason but run-ins with players isn't new: from Anthony Martial to Mesut Ozil, Kaka to Iker Casillas. In fact, it's hard to find a superstar with whom the Special One hasn't picked a fight...
We run through 10 of his most memorable bust-ups.
10. Kaka (Real Madrid)
Kaka was famously one of the nicest and most mild-mannered superstars in football, so when he says a relationship between himself and a coach was "complicated," you can take that as his version of a stinging criticism.