South Africa's Natalie du Toit (2nd-R),wearing a prosthetic left leg, is watched by Italy's Martina Grimaldi (R), Britain's Keri-Anne Payne (L) and Portugal's Daniela Inacio as she prepares to compete in the Women's Swimming 10 km marathon final of the 2008 Beijing Olympic Games at the Shunyi Rowing and Canoeing Park in Beijing on August 20, 2008.[Agencies]