FILE PHOTO OF CHILEAN TENNIS STAR MARCELO RIOS DURING WORLD TEAM CUP MATCH IN GERMANY.
File photo of Chilean tennis star Marcelo Rios during a match against Gaston Gaudio of Argentina at the World Team Cup tennis tournament in Duesseldorf on May 23, 2003. Rios, the first South American player to reach number one in the world rankings, announced his retirement from tennis on July 16, 2004 due to a back problem. The 28-year-old had hoped to recover from the lingering injury but medical exams showed there was no hope of recovery. He won 18 singles ATP titles in his career and in March 1998 became the world's best tennis player. REUTERS/ Ina Fassbender/FILE INA/JOH/WS/SV/GN