The 14-times major champion made a comeback in December following a 15-month sabbatical before withdrawing from the Dubai Desert Classic last week after the first round due to back pain.

The 41-year-old has not won a major championship since 2008.

"There have been plenty of times when I thought I would never play the game again at the elite level," Woods, ranked 674th in the world, said.

"It was tough, it was more than brutal. There were times I needed help just to get out of bed.

"I feel good, not great. I don't think I will ever feel great because it's three back surgeries, four knee operations."

Woods now has his eyes set on the US Masters in April.

"I'm always going to be a little bit sore. As long as I can function, I'm fine with that," he said.