Undefeated heavyweight contender Anthony Joshua has 15 knockouts Savā 15 profesionālās cīņas. Check out this video compilation from SHOWTIME Sports showcasing all of Joshua’s KOs. And tune in Šo sestdien to watch the 2012 British Olympic Gold Medalist challenge undefeated American titlist Charles Martin for the IBF Heavyweight World Championship, dzīvot Showtime at 5 p.m. UN/2 p.m. PT from The O2 in London.