Sumo wrestler Byambajav Ulambayar of Mongolia warms himself up during the Berlin-Basho Sumo Open tournament in Berlin April 12, 2008. REUTERS/Johannes Eisele (GERMANY) 

Sumo wrestler Byambajav Ulambayar of Mongolia warms himself up during the Berlin-Basho Sumo Open tournament in Berlin April 12, 2008. REUTERS/Johannes Eisele (GERMANY) 

World Sumo Heavyweight Champion Byambajav Ulambayar of Mongolia prepares to fight a competitor at the U.S. Sumo Open in Los Angeles April 7, 2007. REUTERS/Lucy Nicholson (UNITED STATES) BEST QUALITY AVAILABLE 

World Sumo Heavyweight Champion Byambajav Ulambayar of Mongolia (C) prepares to fight Kelly Gneiting of the U.S. (L) at the U.S. Sumo Open in Los Angeles April 7, 2007. REUTERS/Lucy Nicholson (UNITED STATES) 

World Sumo Heavyweight Champion Byambajav Ulambayar of Mongolia (R) defeats Wayne Vierra of Hawaii to win the gold medal at the U.S. Sumo Open in Los Angeles April 7, 2007. REUTERS/Lucy Nicholson (UNITED STATES) 

World Sumo Heavyweight Champion Byambajav Ulambayar of Mongolia prepares to fight a competitor at the U.S. Sumo Open in Los Angeles April 7, 2007. REUTERS/Lucy Nicholson (UNITED STATES) See also GF2E43L1FXG01 

World Sumo Heavyweight Champion Byambajav Ulambayar of Mongolia (far side) prepares to face Wayne Vierra of Hawaii at the U.S. Sumo Open in Los Angeles April 7, 2007. REUTERS/Lucy Nicholson (UNITED STATES)