Conor McGregor is being bet on much more frequently than Floyd Mayweather leading up to their long-anticipated showdown on Saturday night.
According to ESPN, the MGM sportsbook and William Hill's Nevada sportsbook each took massive bets on Mayweather on Thursday.
The MGM bet was for $1 million on Mayweather at -550, and would net the bettor $182,000 if Mayweather wins.
The other bet, which was for $1.2 million at -500, would net $240,000. The two bets are the largest reported wagers on the fight thus far.
Mayweather's odds had dipped below -500 last weekends, but have soared back up to -600 in some books because of the heavy stream of money coming in on Mayweather.
"The price is skyrocketing right now," MGM vice president of race and sports Jay Rood said via ESPN.
While Mayweather has so far received about one bet for every 12 on McGregor at Westgate SuperBook, 76 percent of the money is on Mayweather.
As of Thursday, the average McGregor bet at Westgate was $212, but the average Mayweather bet was $8,036.
The Mayweather-McGregor fight is expected to be the most heavily bet on boxing match in history by the time it starts on Saturday, which would pass the $60 million in action that the 2015 Mayweather-Pacquiao fight took in.