I don't understand the betting action for this fight at all.

At some Vegas sports books, Mayweather has been bet down to just a 5-1 favorite. I know bettors should always be wary when something looks too easy, but how is betting on Mayweather here not free money? How is Mayweather not a 40 or 50 to 1 favorite here? The Tyson-Douglas fight was famously 42-1 -- if you could find a place to take action on the fight -- and Douglas was at least an actual boxer.
That being said, multiple bets of $1 million or more were put down on Mayweather in Vegas on Thursday, including a $1.2 million bet at -500. Even with the $1.2 million bet on Mayweather, William Hill's Nevada sports book still faces a seven-figure liability overall if McGregor wins.
I don't get the public betting the fight down to 5-1 odds on a non boxer.
http://www.espn.com/chalk/story/_/id...regor-showdown