Katusha's team rider Kim Kirchen cycles during the prologue of the Tour de Suisse cycling race in Lugano June 12, 2010. Luxembourg's Kim Kirchen withdrew from the Tour of Switzerland on June 19 after suffering heart problems at his hotel during the night, his team Katusha said. Picture taken June 12, 2010. REUTERS/Christian Hartmann (SWITZERLAND - Tags: SPORT CYCLING)