They're not officially in negotiations, but Manny Pacquiao's promoter tells TMZ Sports there's a 75% chance of a rematch with Floyd Mayweather.
We spoke with Bob Arum -- who says the two camps are on great terms. In fact, when Floyd sat ringside at Manny's fight this weekend, it was all thanks to Team Pacquiao.
"Floyd called us and asked for tickets," Arum says, "It's a great sign. I'd love for the fight to happen. I'd make it 75% that it happens."
Arum -- who's been in the fight game for decades -- says he simply doesn't believe Mayweather's fighting days are over.
"Based on my experience, I feel like [Floyd's] getting the itch to come back."
We'll see ...