BK.
I'm sure you are telling the truth about what you heard and yes it does sound like Chico has behaved in a manner which would get him sacked in almost any other job....but, I have some questions regarding this version of events;
1) How many people witnessed this?
2) Is it true that the germ of the argument concerned Chico (
the fittest player at the club)'s diet, specifically what he liked to eat for breakfast?

3) Is it possible that he believed himself to be engaging in
banter with the physio?
4) How, specifically, did Monk "defend" her? Did he calmly tell Chico that he was out of order? Did he pull him aside and have a quiet word? (Club captain stuff)
Or did he get "loud and proud", aggressive, in his face, pushing and shoving even?
5) Who asked him to go home? How was this dealt with? Is it possible that Chico felt tucked up and painted into a corner in the role of club problem? Is it possible that Chico might have believed that Monk had just provoked an incident which would damage his career?
There's always 2 sides to every story. In my experience it takes provocation, rather than a few cross words, to provoke such a reaction.....unless, of course, this version of events is entirely accurate and Chico is a psycho (possible).