By Jason Kim: WBA welterweight champion Shane Mosley called out Manny Pacquiao yesterday telling him that he’s willing to fight him at his “catch weight” of whatever weight that Pacquiao and his trainer Freddie Roach come up with for a fight. However, it’s unknown whether Pacquiao will want to fight him now since he’s said that he wants to wait on the Floyd Mayweather Jr. vs. Juan Manuel Marquez fight and take the winner of that fight next.

Roach said not too long ago that he was interested in Manny facing Mosley, but that Shane would have to come down to meet Pacquiao at a catch weight of 143, and according to Roach, Mosley was having none of it at the time and declined to take the fight.

Now, it looks as if Mosley has changed his tune and is agreeable to take the fight, but the question is whether Pacquiao is interested in taking the fight. This would be a very tough fight for Pacquiao to take, because he would likely not be able to knock the tough-chinned Mosley out.

And if Pacquiao couldn’t score a knockout over Mosley, then Manny could find himself in a situation where he might lose the fight and end up messing up his chance for a huge payday against the winner of Mayweather vs. Marquez.

A fight against Mosley would be a huge fight as well, but not nearly as big as getting the winner of Marquez-Mayweather, obviously. Pacquiao has shown himself to be pretty fearless in the past about taking on dangerous opponents but in this case I don’t know whether this would be his call or not.

His promoter Bob Arum would be the one to pull the trigger on this bout, and if he’s interested in Pacquiao taking this fight then there’s a good chance that we will be seeing Pacquiao and Mosley very shortly. It’s a obviously a tempting bout for Pacquiao and his management team to take, because if they can stay busy and get a huge payday against Mosley and then follow it up with a fight against Mayweather or Marquez, then it will be a huge windfall for Pacquiao.

The risk, though, is the real problem for Pacquiao, because unless they force Mosley’s hand by requesting that he comes in at 140 or maybe even lower than that, Mosley may end up being too strong for Pacquiao to handle.

That would be disastrous for Pacquiao, likely ending his run of big PPV events for awhile depending on how badly he’s beaten by Mosley. However, on the flip side, if Mayweather or Marquez turn around and beat Pacquiao, then it could be the exact same thing.

Many people feel that Mayweather will be too big, slick and strong for Pacquiao to beat and are predicting that Manny will lose to him when the time comes for them to fight. Pacquiao has already struggled with Marquez on two occasions, fighting to a draw in the first fight and then beating him in the 2nd fight in 2008.

Few people feel that Pacquiao actually won the second bout, however. Pacquiao’s luck might run out in a third fight. Usually judges get things right on the third shot and they’ll likely not want to mess things up and score it badly again.