Tiger Woods withdrew from the 2017 Masters on Friday with a back that is just not ready for competition. Woods has not played competitively since early February when he withdrew from the Dubai Desert Classic with back spasms.

“Unfortunately, I won’t be competing in this year’s Masters. I did about everything I could to play, but my back rehabilitation didn’t allow me the time to get tournament ready,” said Woods in a statement on his website. “I’m especially upset because it’s a special anniversary for me that’s filled with a lot of great memories. I can’t believe it’s been 20 years since I won my first green jacket.

“I have no timetable for my return, but I will continue my diligent effort to recover, and want to get back out there as soon as possible.”

Though Woods will not be playing in the Masters, he announced that he will attend the Champions Dinner at Augusta National.

“Augusta National has been a very important place to me and my family for over 20 years, and while I’m disappointed, it will be good to be back there Tuesday,” he added.

Woods has now missed three of the last four Masters with his lone appearance in that span of time coming in 2015 when he finished T17. He has also missed five straight majors and was cut at the previous three. 

Woods has won the Masters four times overall with the last one coming in 2005. 

The 81st Masters this year is the 20-year anniversary of Woods’ first Masters (and major championship) win back in 1997 when he was just 21 years old. He shot 18 under that year and won by 12.