LAS VEGAS, NV - NOVEMBER 11: Boxers Manny Pacquiao (L) and Juan Manuel Marquez pose during the official weigh-in for their bout at the MGM Grand Garden Arena November 11, 2011 in Las Vegas, Nevada. Pacquiao will defend his WBO welterweight title against Marquez when the two meet in the ring for the third time on November 12 in Las Vegas. (Photo by Ethan Miller/Getty Images)
The UFC is putting its best foot forward tonight (Sat., Nov. 12, 2011) with its landmark UFC on FOX 1: "Velasquez vs. Dos Santos" event airing live and free on network television. The big boys will be out to play, as Cain Velasquez defends his heavyweight title against Junior dos Santos.
But there's an even bigger (figuratively) match-up going down later in the evening.
That's because pound-for-pound king Manny Pacquiao is back in action tonight at the MGM Grand Garden Arena in Las Vegas, Nevada, against formidable foe and longtime rival, Juan Manuel Marquez.
So how does "Pacman" prepare for a man he's fought twice already? The HBO 24/7 crew followed both fighters and found out in the lead-up to tonight's explosive showdown. Watch every episode to catch yourself up after the jump.