By Edward Chaykosvky

Trainer Floyd Mayweather Sr. expects a one-sided beating - if his son, Floyd Mayweather Jr. (47-0, 26KOs), steps in the ring with Manny Pacquiao (56-5-2, 38KOs) for a welterweight unification in 2015.

Mayweather plans to fight in May and September. Pacquiao defends his title against WBO junior welterweight champion Chris Algieri on November 22nd in Macau, China.

He says Floyd Jr. will be very aggressive against Pacquiao and use very little movement, which he put on display in last month's twelve round decision win over Marcos Maidana.

"I’m gonna tell you right now, Floyd is not gonna run from no Pacquiao, he’s not gonna run from no Pacquiao. Pacquiao will get beat the hell up, that’s what’s gonna happen. I’m just saying, he can be stronger but Floyd’s not gonna run from no Pacquiao. He might move every now and then a little bit, but overall it ain’t gonna be all this dancing and stuff with Pacquiao. No, I don’t see that," Floyd Sr. told On The Ropes Boxing Radio.

Besides being very aggressive, he says Mayweather will stand in close and trade punches with Pacquiao.

"Well being that he’s smarter and slicker and more clever, I think that he would do all that and make Pacquiao miss everything pretty much. I think Pacquiao and Floyd is a one sided fight," Floyd Sr. said.