I understand that the actual playing the matches is very isolating too: there may be a crowd of people watching the 2 players but it's just them on the court ba

I understand that the actual playing the matches is very isolating too: there may be a crowd of people watching the 2 players but it's just them on the court battling it out. The intensity of the battle and its psychological components probably adds to the isolation on the court, and loneliness off it.