James Nathaniel Toney is an American former professional boxer who competed from 1988 to 2017. He held multiple world championships in three weight classes, including the IBF and lineal middleweight titles from 1991 to 1993, the IBF super middleweight title from 1993 to 1994, and the IBF cruiserweight title in 2003. Toney also challenged twice for a world heavyweight title in 2005 and 2006, and was victorious the first time but was later stripped due to a failed drug test. Overall, he competed in fifteen world title fights across four weight classes.

Vassiliy Valeryevich Jirov, sometimes known as Vasily Zhirov, is a Kazakhstani former professional boxer who competed from 1997 to 2009, and held the IBF cruiserweight title from 1999 to 2003. As an amateur he won a gold medal at the 1996 Olympics, as well as consecutive bronzes at the 1993 and 1995 World Championships, all in the light heavyweight division.