Tiger Woods said his golf game is not acceptable for the PGA Tour these days and that he will taking time away from the pro circuit until he feels it is.
He hopes that could be as soon as two weeks, however.
The 39-year-old shot a career-worst 82 to miss the cut in the Phoenix Open by 12 shots two weeks ago, then withdrew at Torrey Pines last weekend.
Once unstoppable on tour, Woods has missed the cut in three of his last 11 tournaments, and withdrawn from three others due to physical problems.
Tiger's world ranking of 62 is his lowest since 1996.
Woods said on his website that his back injury is not related to the surgery he had last spring, and that he is physical therapy every day and feeling better.
By and large, this is just about him playing poorly.
"Right now, I need a lot of work on my game, and to spend time with the people that are important to me," the 14-time major champion stated.
"My play, and scores, are not acceptable ... Like I've said, I enter a tournament to compete at the highest level, and when I think I'm ready, I'll be back."
Woods is not playing Pebble Beach this week or Riviera next week, and said he would practice these next two weeks "getting ready for the rest of the year.''
He said he wants to play the Honda Classic that starts February 26 in Florida, but he won't play if he's not "tournament ready" by his own estimation.
In 2009, Woods was involved in an incident outside of his home, crashing his car, and later admitted to cheating on Elin Nordegren with A LOT of women.
He apologized, returned to play at the 2010 Masters, and reached #1 in the world again as recently as 2013, while dating skiing champion Lindsey Vonn.
Injuries and age have taken their toll, however, and it remains to be seen when, or if, the Tiger of old will return to the pinnacle he once solely commanded.