Pacquiao shock hasn't sunk in: Horn

Brisbane is firming as the likely destination for Jeff Horn's first WBO welterweight title defence but when it will happen or who he will fight remains entirely up in the air.

Horn's promoter, Duco Events boss Dean Lonergan, says he won't engage in a bidding war with other state governments to host a mooted rematch with Manny Pacquiao, but a workable date will need to be found due to Queensland's unpredictable weather.

However, everything hinges on whether the Filipino great wants to continue boxing after his contentious points defeat to Horn in Sunday's 'Battle of Brisbane'.

"I'm happy with the re-match, it would be awesome to have him back here fighting and do it again if he wants to," Horn told reporters on Monday.

Despite being unable to open his badly bruised and swollen right eye, Horn said he would jump back in the ring with Pacquiao in a heartbeat.

"The face is actually feeling pretty good if I don't touch it," Horn said.

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"If I try and make a frown or something then I can feel the bruises in it. Other than that it just feels like I have got one eye shut."

The Aussie said while another fight in his homeland would be the dream scenario, he wouldn't rule out the possibilty of an overseas bout and the bumper payday that would come with it.

"I'd prefer to come back here and fight in Queensland or Australia, but there's always the chance of the fight could possibly be made in America."

"It hasn't 100 per cent sunken in, but I am always going to keep myself grounded. I am pretty much just going to try and stay as normal as I can," he said.

Horn is adamant he won the fight against the Filipino champion despite many boxing experts slamming the judges' unanimous points decision.

The Aussie knows that if a rematch does eventuate, he'll have his work cut out against a fighter with a massive point to prove.

"Manny Pacquiao is an absolute warrior, he's a legend of the sport," he said.

"He might have come underdone in this fight, I don't know.

"I guess if we have a rematch and he puts in all in again he might come even better."

Horn won the bout after the three judges scored Sunday's fight 117-111, 115-113 and 115-113 - a result Pacquiao's trainer Freddie Roach finds hard to fathom.

Roach was particularly infuriated by judge Waleska Roldan's 117-111 scoring and suggested boxing officials should launch an investigation.

"That was hard, sometimes I think people need to be investigated," Roach told the Daily Telegraph.

"At least in America where you get odd scores like that with the judges, the head commissioner should ask at some point, ‘Why? Where? Show me how you came up with that score.'"

Pacquiao has a rematch clause in his favour and said in the ring after suffering his seventh career loss he would be happy to activate it.

But he flew back to the Philippines on Monday morning with serious doubts over his future in the sport.

Lonergan said he favoured a return to Brisbane, despite Melbourne's Etihad Stadium being mentioned as a possible alternate venue for Horn's next bout.

"I think it's important to keep your alliances with people who help you out when you need them the most," he said.

"I wouldn't envision myself running around to state governments of NSW and Victoria to do boxing events with Jeff Horn simply because our friends are up here in Queensland and it's a much better fit.

"We're not going anywhere."

Queensland Premier Annastacia Palaszczuk said: "If there's going to be a rematch in Australia, it's going to be here in Queensland on my watch."

Horn's deal with Duco and Bob Arum's Top Rank stipulates they will control his next two fights.

Arum, boxing's most powerful promoter, has already forecast potential big-money fights in Las Vegas or New York City.

Horn's trainer Glenn Rushton expects his charge will make light work of Pacquiao should he take up the option, but admitted other challenges - like unifying the welterweight division or even taking on Floyd Mayweather Jr. - were tempting.

"I was looking in his eyes late in the fight to see where he was at and what he had left in the tank," Rushton said.

"I didn't see a lot there.

"I think we have established some mental dominance there over Manny Pacquiao. He would have to rank that as one of his hardest fights ever."