By Rick Reeno

Former four division world champion Roy Jones Jr. spoke to BoxingScene.com and broke down Saturday's welterweight fight between Floyd Mayweather Jr. (43-0, 26KOs) and Robert Guerrero (31-1-1, 18KOs). Guerrero has to make it dirty, says Roy, and he needs to attack often - but he can't get too overconfident based on his success with Andre Berto, who tried to fight Guerrero in a Mayweather-like style. Berto was dropped twice and had both of his eyes practically swollen shut, as Guerrero picked up a twelve round unanimous decision win.

"He needs to keep constant pressure and make it an ugly fight. He can't let Floyd relax and be Floyd because don't have a chance against Floyd like that. [Miguel Cotto] changed the tempo the fight, he attacked and kept Floyd against the ropes more than anyone else has and it was successful for him because of the jab. But that won't happen with Guerrero because he's not as big as Cotto. It will be a little more difficult for Guerrero to do that because of the size," Jones told BoxingScene.com.

"[The strategy he used for Berto] would work but it wouldn't work as good. Floyd is better at what Berto tried to do [against the ropes] than Berto is. He can't allow Mayweather to hit him with the shots that Berto did. Hopefully he knows that Berto is Berto and Mayweather is Mayweather...hopefully he knows the difference."