Plans are nearly complete for the Dec. 13 fight between two-division titlist Tim Bradley and Diego Chaves to headline a tripleheader at the Cosmopolitan in Las Vegas, Top Rank Promotions CEO Bob Arum informed RingTV.com on Friday.

The card already will match Bradley (31-1, 12 knockouts) and Chaves (23-2, 19 KOs) in a welterweight fight between boxers trying to rebound from losses.

In addition, Jose Benavidez Jr. (21-0, 15 KOs), who has fought both as a junior welterweight and welterweight, will face Mauricio Herrera (21-4, 7 KOs), owner of a victory over former WBO 140-pound titleholder, Ruslan Provodnikov, and a loser of a disputed majority decision to RING champion Danny Garcia in March.

Herrera is promoted by Golden Boy Promotions.

Also in the works is a third bout matching southpaws Matt Korobov (24-0, 14 KOs) and Andy Lee (33-2, 23 KOs) for the WBO’s middleweight belt that was vacated by Peter Quillin.

“The Bradley-Chaves and the Benavidez-Herrera fights, those are done. For the Korobov-Lee fight, the fighters have agreed, and we’re tyring to close that match with HBO. We’re trying to finalize all of that with HBO,” said Arum.

“That would be one of the best cards of the year. Bradley and Diego Chavez, Benavides really stepping up with Oscar’s fighter, Mauricio Herrera, and, finally, Andy Lee against Korobov for the middleweight title. That’s a helluva card.”

MANNY PACQUIAO-CHRIS ALGIERI 24/7 AIRS ON HBO ON NOV. 8

In advance of Manny Pacquiao’s WBO welterweight defense against rising 140-pound WBO titleholder Chris Algieri on Nov. 22 in Macau, China, HBO will air the first episode of its companion “24/7ÔÇ│ series on Nov. 8 at 1 a.m. ET/PT.

The show will follow the network’s broadcast of the light heavyweight unification bout between IBF and WBA beltholder Bernard Hopkins (55-6-2, 32 knockouts) and WBO counterpart Sergey Kovalev (25-0-1, 23 KOs) from Boardwalk Hall in Atlantic City, according to a network release.

Algieri (20-0, 8 knockouts) will challenge Pacquiao (56-5-2, 38 KOs) on HBO Pay-Per-View at the Venetian Casino where Pacquiao unanimously decisioned Brandon Rios in November.

Pacquiao, 35, was last in action in April, dethroning Bradley by unanimous decision to regain the belt he lost by split decision to Bradley in June 2012. Between his first bout with Bradley and the Rios fight, Pacquiao lost via six-round stoppage in December 2012 by Juan Manuel Marquez, against whom Pacquiao is 2-1-1.

In June, Algieri, 30, rose from three first-round knockdowns en route to a disputed split decision victory over Ruslan Provodnikov, from whom Algieri won the WBO junior welterweight title.