He ended his competitive career in 2009 and became a coach in spring 2009 .
Earlier in his career , Boll skated with Rina Thieleke , Ksenia Antonova and Maureen Ibanez .
Boll ended Boll 's competitive career in 2009 and became a coach in spring 2009 .
Earlier in his career , Boll skated with Rina Thieleke , Ksenia Antonova and Maureen Ibanez .