Undefeated heavyweight contender Anthony Joshua has 15 在他击倒 15 专业的战斗. Check out this video compilation from SHOWTIME Sports showcasing all of Joshua’s KOs. 而调 这个星期六 to watch the 2012 British Olympic Gold Medalist challenge undefeated American titlist Charles Martin for the IBF Heavyweight World Championship, 住在Showtime在 5 P.M. AND/2 P.M. PT from The O2 in London.