Sven Ottke is a professional boxer who was the third European boxer to retire as an undefeated world champion, following in the footsteps of what English boxer?
Sven Ottke: Sven Ottke (born 3 June 1967) is a German former professional boxer who competed from 1997 to 2004. Sven Ottke:  He made 21 successful title defences, and was the third European boxer to retire as an undefeated world champion, after Terry Marsh and Michael Loewe; Joe Calzaghe later became the fourth.
i don't know