Answer
The attack occurred in January 1994, just weeks before the 1994 U.S. Figure Skating Championships. Kerrigan was practicing at the Cobo Arena in Detroit when she was struck in the right knee with a collapsible baton by an assailant later identified as Shane Stant. The attack was orchestrated by Tonya Harding's ex-husband, Jeff Gillooly, and her bodyguard, Shawn Eckardt, in an attempt to hinder Kerrigan's participation in the upcoming competitions.