Will Wladimir Klitschko dominate again, or will Italian underdog Francesco Pianeta be able to stop the reign?

Why does a defensive wizard like Floyd Mayweather have more problems with southpaws than orthodox fighters? Will it matter Saturday night when he steps in the ring with Robert Guerrero?

Need to know who's going to be fighting on the Mayweather-Guerrero undercard? There's a main event-worthy featherweight title fight and two more bouts coming your way on Saturday.

What do Justin Bieber, Terry Bradshaw, Shabazz Muhammad, Metta World Peace, Ray Rice, Michael Vick, Curtis Granderson, and Busty Rhymes have in common? Not a lot, really!

Will Robert Guerrero be another victim for Floyd Mayweather on Saturday? Sun Tzu has a little something to say about the skill of staying undefeated, and the reality that faces a man who does it too easily.

Wladimir Klitschko has won 17 straight fights with trouble coming in only one of them. Francesco Pianeta is next up for Klitschko, and likely won't be any different than other recent challengers.

Robert Guerrero's opportunity to become an elite, star fighter comes on Saturday against Floyd Mayweather. Is he just another opponent, or does the 30-year-old from Gilroy, California, actually have a shot at the win?

It's a busy Saturday in boxing, and Tom Craze is here to break down the odds for all of the big fights from Brooklyn, California, the UK, and Argentina.

Sergio Martinez returns to Buenos Aires to face Englishman Martin Murray. Is there any chance of the upset in Argentina?

Zab Judah gets another shot at a world title tomorrow night, as he faces Danny Garcia in Brooklyn, live on Showtime. Can Judah deliver in a big fight for the first time in eight years, or will he fall short yet again?