Manny Pacquiao has fuelled speculation of a rematch with Floyd Mayweather after uploading a cryptic post to social media.

The Philippine was comfortably beaten by the American in 2015, with both boxers announcing their retirement in the wake of the fight.

But Pacquiao’s retirement was short-lived and earlier this month the 37-year-old returned to the ring to comprehensively outpoint Jessie Vargas.

After promoter Bob Arum announced that a rematch with Mayweather was 75 per cent likely to happen, Pacquiao has now added to the mounting rumours with his latest Instagram post.

The boxer shared a photo of himself wearing a new jacket, with images of the old foes fighting sewn into the lining. Accompanying the post was the cryptic caption “Like my jacket?”

Mayweather has been retired since May 2015 and enjoys a remarkable 49-0 winning record, but the 39-year-old was present at ringside when Pacquaio claimed the WBO belt against Vargas on November 5.

Speaking after the fight, Arum told ESPN: "Like everyone else, I'm guessing there will be a rematch. He did come to the fight.

"I give it 75 per cent. Do I know it's gonna happen? No. Do I know if Floyd wants the fight? No.

"I know nothing more than the public knows at this point and what I observed.”

He added: "It was so tense last time, but it won't be that way now because everyone can get along.

"Floyd came to the fight and he was very friendly with [Top Rank president] Todd [duBoef] and some of our staff.