Billy LyellWilliam Lyell is an American former professional boxer who competed from 2003 to 2013. He challenged for the IBF middleweight title in 2010.Amateur careerIn an interview with Peter Czymbor, Lyell stated that he had an amateur record of "about 35-20" in "about 50-55 amateur bouts".Professional careerIn February 2009, Lyell upset an undefeated John Duddy in a ten-round fight by split decision.IBF Middleweight ChampionshipHe then lost a very tough fight to Sebastian Sylvester.WBC Silver Middleweight ChampionshipOn June 5, 2010, Billy lost to undefeated champion Julio César Chávez, Jr. The bout was held at the Estadio Banorte in Culiacán, Mexico.