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

Fighting for the first time in nearly four years, the 46-year-old Pacquiao and 30-year-old Mario Barrios fought to a majority draw. The judges scored the welterweight bout 115-113 (in favor of Barrios), 114-114, 114-114 and Barrios retained his WBC welterweight title.