This is it folks!
The main event of the evening -- and possibly the final fight in the storied career of professional boxer and colorful sports personality Floyd "Money" Mayweather -- is about to begin.
After beginning his career in 1996, the champion will attempt to improve to 49-0 to match the legacy of former heavyweight legend Rocky Marciano. Mayweather, 48-0 with 26 knockouts, last faced long-time rival Manny Pacquiao in May of this year, winning a convincing unanimous decision.
His challenger is Andre Berto, 30-3 with 23 knockouts, who has won two in a row since losing to Jesus Soto Karass.