Expert Picks: Ortiz-Mayweather

Saturday marks what could prove to be a career-defining victory for young welterweight champion Victor Ortiz, 24, or merely the latest notch on the diamond-encrusted platinum belt that we imagine Floyd Mayweather Jr., 34, wears on trips to the hardware store. In arguably the biggest boxing card of 2011, both men -- along with some interesting undercard fighters -- can make a grand impression while the world (ticket buyers and pay-per-view customers among us, at least) is watching. Our panel of ESPN.com experts offers its take on how fight night will play out.