Guinn: "I think James Toney's style is perfect for me.''

[ProBox1]

Dominick Guinn jumps rope during an open media workout Wednesday in Reno. In the most important fight of his career, Guinn challenges IBA heavyweight champion James Toney Saturday on SHOWTIME (9:15 p.m. ET/PT, delayed on the west coast). In the co-feature, Chris Byrd defends his IBF heavyweight crown against mandatory challenger DaVarryl Williamson. [details]