Tiger Woods comeback in doubt after seventh back surgery for collapsed disc

• Woods has lumbar disc replaced in New York

• 15-time major winner calls operation successful

• No timetable set for 49-year-old's golf return

Tiger Woods has announced that he underwent back surgery on Friday to address a collapsed disc in his spine.

The 15-time major winner had lumbar disk replacement surgery after he experienced pain in his lower back and said on social media that the operation was deemed successful, although it is unknown when the 49-year-old will return to golf.