THE STORY
On March 8, 2003, at Preussag Arena in Hannover, Germany, Wladimir Klitschko defended his WBO Heavyweight Championship against Corrie Sanders. Sanders knocked Klitschko down four times, leading to a second-round technical knockout victory. This upset was named The Ring magazine's Upset of the Year for 2003.
TEAMS / PEOPLE:
Wladimir Klitschko, Corrie Sanders
WHY IT MATTERS
This unexpected defeat significantly impacted Klitschko's career trajectory and the heavyweight division's landscape.