Event that caused the fine.
Nate Diaz and Conor McGregor somehow start throwing bottles and cans at each other before the UFC 202 press conference came to an abrupt end.
The Nevada Commission fined McGregor 5 % of his $3 million income along with 50 hours of community service. The fine totaled out at $150,000 but that number was actually split between money owed to the state and funds he would use to make a public service announcement for the state.
Regardless it was big enough to upset McGregor to the point where he refused to fight in Nevada ever again.