Boxing great Floyd Mayweather could be set to come out of retirement – and a massive rematch could be on the cards.

The American, 42, has teased that he will make a huge announcement on Wednesday afternoon.

He quit the ring officially in 2017 after getting the better of Conor McGregor .

But Money has dropped hints ever since that he could tempted back into the sport despite saying he has nothing left to prove.

Now his fans are excited after he posted that he's got something important to say.

Mayweather posted a video on Instagram of him in a mock press conference.

Mayweather has something important to say on Wednesday

He said: “Thank you to the media and my business partners, I have an announcement to make.”

It ended with the words: “Announcement Wednesday".

His father Floyd Mayweather Snr has been vocal in the past year that his son will get his gloves back on.

A rumoured re-match with Manny Pacquiao could be on the cards if the rumours are true.

The fight grossed more than $600million back in 2015 – with each fighter making in excess of $160m.

Fans on social media are excited at the prospect.

“Floyd Mayweather vs Manny Pacquiao 2 – yessss!” one wrote.

Another said: "If it happens it can't be any worse than the last one lets be honest."

Meanwhile Deontay Wilder has explained why he turned down £100million to fight Anthony Joshua – and doesn't regret his decision.

Could there be unfinished business from 2015?

A mega money three-fight deal from Joshua’s promoter Eddie Hearn was on the table.

But Wilder said no and the American insists it's not just about the money.

“I am not in the business of just trying to take some money because you see a number,” Wilder told the Daily Mail .

“That's not me. That's never been me. I look at the bigger picture. You sell me a number and I know there's going to be a bigger number than that.

“We came in serious and we were looking for serious answers and we didn't get them and for that reason we had to leave until a further time.”