Complex sentence: Troy was told that he would never play again, nonetheless, in October of 1997, he underwent surgery that fused a piece of bone from Troy's hip onto his 5th and 6th vertebrae.
Split into simpler sentences: Troy was told that he would never play again. Nonetheless, in October of 1997, he underwent surgery that fused a piece of bone from Troy's hip onto his 5th and 6th vertebrae.