Basketball star Shaquille O'Neal is going head-to-head with Olympic swimmer Michael Phelps and Wimbledon champ Serena Williams, trying to beat them at their own sport.
The 7-ft.-1-in. player is filming a new reality TV series, in which he faces off with other sports stars, taking a crash-course in his opponent's field before they compete.
Called Shaq Vs. the show will feature boxer Oscar de la Hoya, baseball star Albert Pujols and Olympic volleyball gold medalists Kerri Walsh and Misty May-Treanor, in addition to Phelps and Williams.