Analysis: We chart Tiger Woods' nightmare 12 months after US Open implosion
Tiger Woods' troubles continued with a round of 80 in the first round of the US Open on Thursday.
Here, we chart a troubling year for the 39-year-old former world number one.
2014: May 28 - Announces he has still not recovered from back surgery and will miss the US Open at Pinehurst as a result.
July 20 - Finishes 69th in the Open at Royal Liverpool, his worst 72-hole finish in a major in the paid ranks.
August 3 - Withdraws during the final round of the WGC-Bridgestone Invitational in clear pain after hitting a shot.
August 8 - Misses just his fourth cut in 66 majors as a professional after suffering yet more back trouble at the US PGA Championship at Valhalla.
August 14 - Announces he does not wish to be considered for the Ryder Cup team due to a back injury, later revealing he did not feel he could have won a point for the United States.
August 25 - Ends professional relationship with swing coach Sean Foley.
November 22 - Appoints Chris Como as swing coach.
December 2 - Claims he ''feels fantastic'' ahead of his long-awaited return to competitive golf.
January 9 - Confirms he will start his 2015 season at the Waste Management Phoenix Open.
January 30 - Records the worst round of his professional career with an 11-over par 82 in the second round of the Phoenix event.
February 5 - Withdraws from his next event, the Farmers Insurance Open, during the first round because of back pain.
February 11 - Takes an indefinite break claiming: ''Right now, I need a lot of work on my game, and to still spend time with the people that are important to me.''
March 30 - Drops out of the world's top 100 golfers for the first since 1996.
April 3 - Announces that he will compete at the Masters.
April 13 - Finishes joint 17th at Augusta after a closing 73. Woods went into the final round in a tie for fifth with Rory McIlroy.
April 24 - Announces he will return to the PGA Tour at the Players Championship on May 7.
May 3 - Announces his relationship with Lindsey Vonn is over.
June 6 - Shoots a career-worst 85 - 13 over par - in the third round at the Memorial Tournament in Ohio.
June 18: Shoots his worst round at the US Open - a 10-over par 80 - in the first round at Chambers Bay.