WBC/WBA welterweight champion Floyd Mayweather Jr.
WBC/WBA welterweight champion Floyd Mayweather Jr. of the U.S. speaks during a news conference at the MGM Grand hotel-casino in Las Vegas, Nevada September 10, 2014. Mayweather will defend his titles, including his WBC jr. middleweight title, against Marcos Maidana of Argentina in a rematch at the MGM Grand Garden Arena on September 13. Reuters/Las Vegas Sun

Before Floyd Mayweather Jr. finally agrees to the proposed and much-anticipated fight against Manny Pacquiao, he has another condition. Freddie Roach said that Mayweather is demanding a rematch clause just in case the undefeated American boxer loses in the first proposed fight against Pacquiao.

According to a report by Daily Mail, Roach has revealed that Mayweather is requiring a rematch clause in the Pacquiao fight. Mayweather wants a safety net in the prospective deal with the eight-division Filipino world champion just in case he loses in their first proposed fight, even though it remains unclear whether or not the fight will come to culmination. Roach has said that he is amenable to the rematch clause.

"My understanding is that Floyd is insisting on the rematch if Manny beats him, which I believe he will," Roach told Jeff Powell of the Daily Mail. "That's okay with us."

Powell further stated that the target fight date for Mayweather and Pacquiao is May 2015. Should Mayweather lose, a rematch is instantly scheduled in September 2015. Powell said that the prize money at stake could reach as high as

Mayweather has previously demanded a rematch clause in his fight contract. He did it with his fight against Robert "The Ghost" Guerrero in May 2013.

Meanwhile, Pacquiao has never been so pushy and determined in making the super fight happen. Following his unanimous win over Chris Algieri on Nov. 23, Pacquiao has called out on Mayweather again. Recently, it has been reported that Pacquiao is even willing to take a lesser purse against Mayweather, just to make the fight go down.

The undefeated American fighter has reportedly demanded a bigger purse that Pacquiao, local Philippine news outlet GMA Network reports. The report said that Mayweather will take home $100 million, while Pacquiao will get $60 million. Pacquiao's adviser Michael Koncz has said that they will be open to whatever condition that the Mayweather camp presents to them.

In an article by Rappler, Pacquiao's business manager Eric Pineda has said that the negotiations are already underway. Pineda said that Pacquiao is not interested with the money, but instead, the eight-division Filipino world champion is more concerned about giving the fans what they want.