By Steve Kim

While Floyd Mayweather is promising that this weekends bout against Andre Berto is his swan song, Bob Arum believes that Manny Pacquiao - who lost to Mayweather on May 2nd - still has more fight left in him as the calendar turns to 2016.

"He's going to fight next year and he's going to fight the best available person and right now we're focusing in on three guys but there might be more ahead. We're looking at Kell Brook, Amir Khan and Terence Crawford," the veteran promoter told BoxingScene.com on Tuesday afternoon, a day after returning from Asia.

As for the possibility of a rematch with Mayweather, Arum answered - "If the guy says he's going to retire, there isn't. If he's not going to retire, there is. Who knows, but why would I say yes when the guy says this is his last fight?"

So just how many fights does 'the Pac Man' have left in him?

Arum stated,"He owes us three fights and I think he's going to fulfill his obligations and do three fights. He might do two, he might do more but I would think he would fight three more times."

Steve Kim is the news editor for BoxingScene.com