MANILA, Philippines – It seems that Manny Pacquiao’s next fight is hinged on Timothy Bradley and Brandon Rios.

The obvious fight for the Filipino boxer is Juan Manuel Marquez, but according to boxing promoter Bob Arum, the Mexican’s decision will depend on the availability of Bradley and Rios.

“Well, first [Timothy Bradley] has to beat [Ruslan] Provodnikov. If he beats Provodnikov and Rios beats Alvarado and then we’ll see what Manny [Pacquiao] and [Juan Manuel] Marquez will do,” the Top Rank promotions CEO said in Boxing Scene. 

Bradley, who edged Pacquiao by split decision last June, will defend his WBO welterweight title against Russia’s Ruslan Provodnikov on March 16.

Rios, on the other hand, will face Mike Alvarado in a rematch on March 30.

Arum said Pacquiao and Marquez might go for a fifth fight sometime in September. If it doesn’t happen, that means Pacquiao will have to face either Bradley or Rios.

“I got four guys and we’ll mix and match,” said Arum. “If Marquez and Manny decide to fight this year, then I’ll try to make Rios and Bradley. If Manny and Marquez won’t fight this year, one of them can fight Bradley and the other can fight Rios.”

Marquez defeated Pacquiao via a stunning sixth-round knockout last December -- the first for the Mexican, who lost twice and drew once with the Filipino boxing superstar.