Manny Pacquiao was not pleased with the way he lost his WBO welterweight title on Saturday night to 2012 Australian Olympian Jeff Horn.

Before a crowd of over 50,000 at the Suncorp Stadium in Brisbane, Horn pulled off a twelve round unanimous decision over Pacquiao in a major upset. The fight was televised on free TV, as part of a four fight televised card on ESPN.

The three judges scored the fight 117-111, 115-113 and 115-113.

In a post-fight interview with ABS-CBN, Pacquiao complained about the tactics that were used by Horn during the contest. 

There were several head clashed that opened up two bad cuts on Pacquiao's head. He also claims that Horn hit him several times with an elbow and also used his size to press down on his neck.

"There were lots of [head clashes, neck-holds, elbow strikes] because the referee did nothing," Pacquiao said, according to a translation of the interview posted on Reddit.

"[The referee] seemed inexperienced. I don't know if it was deliberate or not [that he didn't take away any points]. There were warnings. But nothing was given by the referee [in terms of points being taken]."

Horn was the bigger man and used his size and power, but Pacquiao makes it clear that the only issues for him were the fouls. He wasn't bothered by Horn's punches.

"No [Horn's size and power was not a problem], not at all. I managed to block his punches. The only problem was his elbow-strikes and headbutts... our heads even collided," Horn said.

Horn is not paying attention to any of the critics who believe the outcome was very controversial and should have went the other way.

"There's always going to be backlash. People are going to say I got lucky. Whatever," Horn said. "There's always going to be the naysayers saying I didn’t win the fight. But I felt like I won the fight.

"I think a lot of Queenslanders think I won the fight and people around the world. You're always going to have a select few that are going to be against you."