Manny Pacquiao has won each of his last three fights since losing back-to-back fights to Timothy Bradley and Juan Manual Marquez back in 2012. The betting underdog Pacquiao will be looking for the upset this Saturday night at the MGM Grand against the undefeated Floyd Mayweather.
Read next: Read our Pacquiao vs. Mayweather recap.
With money coming in on Mayweather this week, Pacquiao is now a +175 underdog, according to sportsbooks monitored by OddsShark.com. After going off at -210 in the weeks leading up to the fight, Mayweather is now a -225 favorite.
The most likely result of Pacquiao vs. Mayweather, according to boxing props at the sportsbooks, is a Mayweather win by decision, which is currently going off at -135. Mayweather hasn't won a fight by knockout since 2011, winning each of his last five fights by decision.
Bettors looking to pay less juice on a Mayweather victory seem to favor this wager at -135 over Mayweather outright at -225. A Mayweather knockout win would pay +550, which is the biggest underdog of all of the outcomes other than a draw at +1200.
Pacquiao is going off at +400 to knock Mayweather out and +375 to win by decision at the sportsbooks. For Pacquiao bettors, there could be some value in betting on Manny to win by decision.
Mayweather is a notorious slow starter, and Pacquiao is well known for his endurance. If Pacquiao can win the first few rounds and then hang with Mayweather the rest of the way, he could come away with an upset by decision.
Each of Pacquiao's last seven wins have come via decision, and many would argue that it should be eight wins after his highly controversial decision loss to Timothy Bradley.
Regardless of who would win by decision, odds are in favor of this one going to the cards. The fight going the distance is a -300 favorite over the fight ending before the final bell at +230.
Prop bets for this fight are so extensive that bettors can even bet on the first punch, with Mayweather a -125 favorite to throw the first punch over Pacquiao at +105. A left hand punch being thrown first is -130 over the right hand at +100.