Experts' predictions for Floyd Mayweather vs. Robert Guerrero

The undefeated Floyd Mayweather (left) is a heavy favorite against Robert Guerrero, who last lost in 2006. (AP)

SI.com’s boxing experts predict Saturday’s fight between Floyd Mayweather and Robert Guerrero (9 p.m. ET, SHOWTIME PPV). Share your prediction in the comments below.

CHRIS MANNIX

Boxing’s inimitable hype machine has worked overtime to pump up Guerrero, when the reality is this: He’s not on Mayweather’s level. No question, Guerrero earned this fight. He fought the fights no one wanted (see Aydin, Selcuk) he beat a legitimate former titleholder (Andre Berto) and he looked good in both. But think about critical physical attributes: Speed, power, defense. Mayweather has the edge in all of them. I think Guerrero gets hit early and often, and I think Mayweather’s underrated power finishes him off before the final bell. Mayweather by eighth round knockout.

BRYAN ARMEN GRAHAM

Mayweather by majority decision.