Christian Cantwell of the United States competes on his way to winning the gold medal in the final of the Men's shot put at the 13th IAAF World Indoor Athletics Championships in Saturday, March 13, 2010 in Doha, Qatar ...

Christian Cantwell of the United States in action during men's shot put event at the athletics meeting Pedro's Cup in Szczecin, Poland, 15 September 2009.

090816) -- BERLIN, Aug. 16, 2009 -- Christian Cantwell of the United States of America jubilates after winning the final match of men's shot put during the 12th IAAF World Championships at the Olympic stadium in Berlin, Germany, Aug. 15, 2009 ...

US Christian Cantwell (Gold Medal) during the medal ceremony of the shot put final at the 12th IAAF World Championships in Athletics, Berlin, Germany, 16 August 2009.