Bjørn Dunkerbeck, the most successful professional athlete of all time with 42 world championship titles, is fighting his way back to the top of the world at the age of 52, despite a serious hip operation.
Bjørn Dunkerbeck, the most successful professional athlete of all time with 42 world championship titles, is fighting his way back to the top of the world at the age of 52, despite a serious hip operation.
