Undefeated heavyweight contender Anthony Joshua has 15 průchodky v jeho 15 profesionální boje. Check out this video compilation from SHOWTIME Sports showcasing all of Joshua’s KOs. And tune in tuto sobotu to watch the 2012 British Olympic Gold Medalist challenge undefeated American titlist Charles Martin for the IBF Heavyweight World Championship, živě na SHOWTIME na 5 p.m. A/2 p.m. PT from The O2 in London.