Golden Boy chief executive Richard Schaefer told me on Wednesday that he is working on 13 different fights for various cards before the end of the year. But one of the bouts he had hoped to make -- interim welterweight titlist Keith Thurman versus Robert Guerrero -- is not on that list.

That is because Guerrero (31-2-1, 18 KOs), coming off a lopsided points loss to Floyd Mayweather Jr. in May, declined the fight, which Schaefer had projected to take place either as a Nov. 2 Showtime bout or as part of a Nov. 9 Showtime PPV card he is working on. The pay-per-view card could be headlined by welterweight titlist Adrien Broner against Marcos Maidana, which is one of those 13 bouts Schaefer said he was working on (although he declined to list all 13).

“Keith Thurman against Robert 'The Ghost' Guerrero is a fight I would be interested to see. Sometimes I have crazy ideas but I like to see good fights,” Schaefer said. “I’m no different than any fight fan whether I’m the promoter of the fight or a spectator, and I felt Thurman against Guerrero would have been an interesting fight. But Guerrero and his team were not interested.”

Guerrero co-manager Luis DeCubas Jr. also acknowledged that it was not a fight they were interested in.

According to Schaefer, Guerrero was more interested in challenging the winner of the proposed Broner-Maidana fight for the belt.

“I said, ‘OK, but that wouldn’t be until next spring,’ and they said they would be OK with waiting,” Schaefer said.

It seems to me that because Guerrero’s purse was $3 million to face Mayweather, he doesn’t need the money right now so why not kick back and relax, and wait for a world title fight?

With Guerrero off the table as an opponent for Thurman (21-0, 19 KOs), who won his interim belt with an exciting 10th-round knockout victory against Diego Chaves on July 27, Schaefer said he is thinking about giving Jesus Soto Karass a shot.

That absolutely has action fight written all over it. In the main event of the card that included Thurman-Chaves, Soto Karass (28-8-3, 18 KOs) battered former two-time welterweight titlist Andre Berto into a 12th-round knockout in a barnburner for his second big win in a row. He also outpointed Selcuk Aydin in January.

“One of the fights we’ll look at now is Thurman against Soto Karass,” Schaefer said. “I would love to see it. You know it would be another toe-to-toe battle.”