By Salvador Rodriguez

Trainer Freddie Roach is disappointed that Juan Manuel Marquez has no interest in a fifth fight with Manny Pacquiao, who is scheduled to return on April 12th at the MGM Grand in Las Vegas.

Pacquiao and his promoter, Top Rank's Bob Arum, tried to convince Marquez to accept a fifth meeting. The Mexican superstar continuously said he was not interested.

After three unsatisfying endings, Marquez wants to close their rivalry with the sixth round knockout that he scored in the fourth fight in 2012.

Now Pacquiao will either face Ruslan Provodnikov or Timothy Bradley, who holds a controversial split decision win over the Filipino fighter.

"I think it would have been a good fight, but [Marquez] said no, and that makes me a little sad because we know that was the best fight out there for Manny. Personally, [between our two choices] I think a fight with Ruslan is better. Bradley would be difficult because he boxes well. I personally saw him winning that fight against Marquez. He is fast, knows how to fight and a rematch is necessary. I thought [Pacquiao] beat Bradley [in their fight], but the scorecards didn't agree," Roach said.