(Reuters) - Cuban Yordenis Ugas pulled off a stunning victory over 42-year-old former champion Manny Pacquiao with a unanimous decision to retain his WBA welterweight world title in Las Vegas on Saturday.

The judges scored the fight 115-113 116-112 116-112 in favour of Ugas, who controlled the second half of the contest with his jab as the more aggressive Pacquiao struggled to land his punches on his return to the ring after a two-year absence.