Siarhei Piatrovich Liakhovich is a Belarusian former professional boxer who competed from 1998 to 2020. He held the World Boxing Organization (WBO) heavyweight title in 2006. At regional level, he held the Belarus heavyweight title from 1998 to 2001. As an amateur, he won a bronze medal at the 1997 World Championships. World heavyweight champion (WBO) from April 1, 2006 to November 4, 2006. Wiki link