Tiger Woods will not play in the 114th U.S. Open at Pinehurst No. 2 in Pinehurst, N.C., next month, he announced Wednesday. He is still rehabbing after undergoing microdiscectomy surgery for a pinched nerve in his back on March 31.

"Unfortunately, I won't be there because I'm not yet physically able to play competitive golf," Woods said. "I'd like to convey my regrets to the USGA leadership, the volunteers and the fans that I won't be at Pinehurst. The U.S. Open is very important to me, and I know it's going to be a great week. Despite missing the first two majors, and several other important tournaments, I remain very optimistic about this year and my future."

This marks the sixth major championship Tiger has missed due to injuries. After winning the U.S. Open at Torrey Pines in 2008 while playing with a broken leg, he underwent knee surgery and was sidelined for eight months, missing The Open Championship and PGA Championship.

In 2011, knee and Achilles injuries forced him to sit out four months of the season, and he missed the U.S. Open and The Open Championship.

Tiger has not competed since the last round of the WGC-Cadillac Championship on March 9. He fired a third-round 66 that vaulted him back into contention but was in obvious pain and struggled the following day.