ABOUT SERGEY KOVALEV
Russian boxer who became the WBA, WBO and IBF Light Heavyweight Champion. He won gold medals at the World Military Championships in 2005 and 2007.
He won silver at the Russian Junior Championships in 2000.
He did not lose a single professional fight from his debut in 2009 through the end of 2014.
He married a woman named Natalya.
He defeated Bernard Hopkins to win the IBF and WBA Light Heavyweight titles in November 2014.
