Tiger Woods announced on Friday that he underwent a follow-up procedure on his troubled back.
"It's one of those things that had to be done," Tiger said on his website. "I have an outstanding team of doctors, and I'll be back as soon as I can."
The surgery was performed earlier in the week in Park City, Utah by neurosurgeon Dr. Charles Rich.
"Tiger is doing well, and we expect him to make a full recovery," Rich said.
Woods was scheduled to speak on November 4 in Jupiter, Florida to promote his Hero World Challenge. It was announced late on Friday that this press conference had been canceled. Woods is still expected to attend and host the early-December tournament.
"I look forward to being at my event," Woods said. "Hero is a tremendous supporter of my foundation and particularly our scholars."
Already facing a long road back in return from a previous surgery, today's announcement puts Woods' short-term return -- specifically, his Masters prospects -- in serious jeopardy.