The 39 year-old makes the 18th defence of the top division championship at Madison Square Garden in New York City on Saturday night against undefeated American challenger Jennings.
Klitschko is a huge favorite to continue his long reign as the best in his weight class and extend an unbeaten run stretching back over a decade since a stoppage loss to Lamont Brewster.
Opponent Jennings, 30, boasts a 19-0 C.V with 10 stoppages and a career-best split decision victory over Mike Perez last time out at the same venue.
