Conor McGregor Net Worth: Floyd Mayweather Fight Makes Him MMA's Richest Star

Before his super-fight with Floyd Mayweather, Conor McGregor was the biggest star in the UFC. After suffering a 10th-round TKO Saturday night, he's the richest fighter in MMA history.

By making the foray into boxing, McGregor saw his net worth skyrocket. He was guaranteed a paycheck of $30 million, and he could make well more than three times that much when the final pay-per-view numbers and revenues from ticket sales are tallied.