Manny Pacquiao, who at 46 fought reigning WBC welterweight Mario Barrios to a majority draw, explained the source of his astonishing stamina.

At 46 years old, Manny Pacquiao is lacing up the gloves again. This weekend, he steps into the ring against 30-year-old Mario Barrios for the interim WBC title. During his media rounds, the Filipino legend decided to settle a debate that has recently heated up with back-and-forth comments between the two camps: prime Floyd Mayweather vs.

Hall of Famer Manny Pacquiao is back. The former eight-division champion has decided to return to boxing after nearly four years away to try and win another world title at the age of 46 on Saturday. He challenges WBC welterweight champion Mario Barrios in the main event of a PBC on Prime PPV at the MGM Grand Garden Arena in Las Vegas.

Manny Pacquiao will face off against champion Mario Barrios Saturday night, but "Pacman's" toughest opponent is expected to be his age.