Ping Pong competition turns into Muay Thai How to end your sport career 'Thai Style'

Happened a few days ago in Canada
They had been badminton partners in the past (London 2012 Olympics).
That was then. This time they were playing against each other and bad blood was boiling between them.
Early in the game both had been warned following a heated verbal exchange.
Rumor and probably likely, punches started when one player called the other a ladyboy (refering to his ponytail).