This is from The Ring magazine:
It’s common in professional boxing for the official contracts of a bout to remain unsigned until long after the matchup has been announced, sometimes until the week of the fight. However, the fighters customarily sign a bout agreement that details basic terms of the deal – including how much they are to be paid.
And here is what Todd Debouf says:
“This is a fight that was brought up by Gamboa and Gamboa’s co-promoter, Ahmet Oner, last year,” duBoef said. “Before his last fight in September, Oner told me that Yuriorkis Gamboa wanted to fight Manny Pacquiao – but first, he wanted Brandon Rios. He wanted to win the lightweight title. I never thought of that, but it was a fascinating matchup.
“I said let’s talk after his fight in September, and we did. Then we talked after Brandon’s last fight in December. We talked to Brandon and his manager, Cameron Dunkin, and in late January or early February, Rios agreed to do the fight.
“On Feb. 16, Top Rank, Arena-Box and Gamboa all had an agreement for the fight. Once we had that agreement, we set dates for the press conferences and we activated our partners. I’m just a promoter, I can’t do it alone. We need HBO, the Mandalay Bay, and our sponsors, Tecate and AT&T.”
There is no ‘Plan B,’” duBoef said. “I’ve got commitments to HBO, the Mandalay Bay and to our sponsors. They want Rios-Gamboa. I’m bound to the fans. They want Rios-Gamboa. The ticket demand for this fight is unbelievable. We originally configured the arena for 6,500 seats but the demand is so great it’s looking like the full Event Center will be needed.
“Rios-Gamboa is the fight fans want to see. That’s what we want to deliver and that’s still the plan.”