A tattoo on the left arm of France's leftwing Samuel Honrubia is seen during the men's preliminary Group A handball match Iceland vs France for the London 2012 Olympics Games at the Copper Box hall in London. (AFP / Javier Soriano)

France's Benjamin Stasiulis competes in the men's 200m backstroke heats swimming event at the London 2012 Olympic Games in London. (AFP / Gabriel Bouys)

A swimmer bearing an Olympic rings tattoo gets ready prior to compete in the women's 50m freestyle heats during the swimming event at the London 2012 Olympic Games in London. (AFP / Christophe Simon)

The tattoo of a swimmer is pictured during a training session at the Aquatics center in London. (AFP / Martin Bureau)

The heavily tattooed Damien Hooper of Australia during the 16th round of Light-heavyweight (81kg) contest of the London 2012 Olympic Games at the ExCel Arena in London. (AFP / Jack Guez)