Thorpe probably will never again swim competitively , manager says . Thorpe contracted infections after shoulder injuries , manager says . Australian swimmer retired last year after shoulder injury ; required surgery after January fall . Thorpe won two Ian Thorpe gold medals in 2000 ; three more in January .
Thorpe probably will never again swim competitively , manager says . Thorpe contracted infections after shoulder injuries , manager says . Australian swimmer retired last year after shoulder injury ; required surgery after January fall . Thorpe won three Olympic gold medals in 2000 ; two more in 2004 .