I have recently been watching the documentary "All or Nothing" about Tottenham last year.
There are a variety of languages used representing the multinational nature of the team. I was interested to see Jose Mourinho talking one to one with the England international, Eric Dier in Portuguese. Dier's Portuguese seemed fluent (but I am not expert on this) but I wonder whether there was a power dynamic at work here as it is obviously Mourinho's first language.
I was also struck by how often swear words were used as part of the culture. Do the players and managers think this provokes more passion? Interestingly, Amazon did not bleep out the "f word" but did bleep out the "c word".
There is also an interesting section where Mourinho learns the names of the players. Again, there are aspects of hierarchies. Harry Kane is called "Harry" so Harry Winks has to be called "Winksy". He also asks the player Kyle Walker Peters if he is "Walker" or "Peters" and he replies "Walker Peters". It seems surprising that Mourinho who has worked in Britain for a long time is not really aware of double barelled surnames.