Tiger Woods faces further questions over his future in golf after being forced to withdraw from the Farmers Insurance Open in California on Thursday.
Woods missed last year's Masters and the US Open after having surgery on a pinched nerve and only managed 11 holes in his first round at Torrey Pines before pulling out of the tournament.
The 14-time Major winner appeared to hurt his back after hitting his tee shot at the 12th - his third hole of the day - but carried on for eight more holes before calling it a day.
Woods said this was the first time he has experienced such a situation as he tries to manage his comeback.
Usually you don't have to wait like this. At home practising I keep going and keep going. This is different.
My glutes (gluteus maximus muscles) are shutting off. If they don't activate it goes into the lower back. I tried to activate my glutes best I could but they didn't stay activated.
Rory McIlroy's settlement with his former agent is worth more than £13million after the two came to an out of court agreement, Press Association report.
The golfer was suing Conor Ridge, of Horizon Sports Management regarding the cut the agent was taking from McIlroy's earnings.
"It's in the public domain that the amount of money owing under the contract and the money likely to be generated from the the contract was 20 million dollars," a source said.
McIlroy had sued Mr Ridge's agency over the cut his firm was taking from on and off-course earnings in a potentially ugly row over £4.2million in fees.
A brief statement agreed between the McIlroy and Ridge camps was released following the hearing.
"The legal dispute between Rory McIlroy and Horizon Sports Management has been settled to the satisfaction of both parties, who wish each other well for the future," it said.
"The parties will be making no further comment."
Golf caddies have instigated a lawsuit against the PGA Tour, claiming they deserve a share of £33million earned from sponsored bibs.
Caddies earn nothing from the bibs they wear, so filed the action on Tuesday in North California.
The Tour is also accused of not providing access to healthcare and pension plans.
The world's top golfer Rory McIlroy spent just 42 seconds in court before his lawsuit against his former agent was deferred.
McIlroy is suing Conor Ridge's Horizon Sports Management over the percentage of his earnings they took.
The bitter row over £4.2million in fees has taken the pair all the way to the big business division of the Irish High Court in Dublin.
Court number one in the Four Courts in Dublin was packed, as Judge Brian Cregan agreed to give lawyers for both sides time to open discussions. The case is scheduled to resume at 2pm and is expected to last eight weeks.
Tiger Woods made his worst score as a professional golfer when he shot 82 at a US tournament on Friday,
The former world number one had a terrible day at the office during the second round of the Waste Management Phoenix Open, finishing 11 over par and missing the cut.
Woods had only failed to qualify for the final 36 holes on 12 occasions until today in 19 years as a pro golfer and it was only the second time that he failed to break 80.
Woods' previous worst effort came at the 2002 Open Championship at Muirfield when, in horrendous conditions, he shot 81 in the third round but he went one worse than that in Arizona.
The 39-year-old was playing in playing in only his second event since missing the cut at the PGA Championship in August last year.
Pro golfer Robert Allenby has said he is "just glad to be alive" after being kidnapped, beaten, robbed and dumped in a park in Honolulu.
The 43-year-old Australian said he last remembered being separated from his friend in a wine bar in Waikiki after they had paid the tab.
"Next thing you know, I'm being dumped in a park miles away," he told Reuters. "A homeless woman found me and told me she saw a few guys pull up and throw me out of a car. I'm still in a bit of shock."
Allenby thanked the local police and golf officials for their help after what he described as his "unfortunate ordeal", along with his many well-wishers.
"Medically, I thankfully didn't suffer anything major beyond some bumps and bruises that will take a bit of time to heal," he said in a later statement released by the PGA Tour.
The four-times Tour winner has said he is not yet sure if he will return to competition next week while he recovers from his facial injuries but said he anticipated a "successful rest of the 2014-15 season".
Gary Stal profited from Martin Kaymer's extraordinary collapse to win the Abu Dhabi HSBC Golf Championship.
Kaymer carried a six-shot lead going into Sunday's final round and extended his advantage to eight shots after birdies at three of his first four holes, but it went downhill fast for the three-time winner soon after.
A bogey at the sixth hole, a double bogey at the ninth and a triple bogey at the 13th led to the German's demise and, although Kaymer stopped the rot with five successive pars, he ran out of holes with which to recover.
The reigning US Open champion - a winner of this tournament in 2008, 2010 and 2011 - drove into the bunker on the 18th hole and although he recovered with some fine approach play he missed his birdie putt to cap off a miserable day at the Abu Dhabi Golf Course.
That meant Kaymer finished on 17 under overall - his error-strewn three-over-par 75 the joint worst of the day with England's Andy Sullivan.
Kaymer's remarkable slump allowed Stal to pounce and the 22-year-old Frenchman promptly took the lead after Kaymer's triple bogey thanks to six birdies in his first 11 holes.
After parring the first three holes, Stal picked up shots at the fourth and six before reeling off four successive birdies to the 11th hole to move two clear at the top of the leaderboard.
Four pars followed before Stal birdied the par-four 16th and finished with two pars to finish with a seven-under 65 for the day - one shot clear of world number one Rory McIlroy, who carded a final-round 66 to finish with a flurry and claim the runners-up spot.
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World number one Rory McIlroy pulled off his first professional hole in one on the 15th hole in the second round of the 2015 Abu Dhabi Golf Championship.
The Northern Irishman used a 9-iron from 177 yards and is just two shots off leader Martin Kaymer after day two.
Rory McIlroy has been named the 2014 Race to Dubai European Tour Golfer of the Year after a stunning season on both sides of the Atlantic.
The 25-year-old also won the WGC-Bridgestone Invitational and the BMW PGA Championship at Wentworth, and adds the honour to the Golf Writers Trophy he was awarded last week.
"To be named the European Tour's Golfer of the Year for a second time is a huge honour and one I am extremely proud of," he said.
"If I had won any one of those four titles it would have been a good year, but to win all four, to win The Race to Dubai, and to be part of another fantastic European victory in The Ryder Cup, means it is a great one.
"This award is a very nice way to round off the year. The European Tour has always been good to me, so it is always special to be recognised in this way. Hopefully I can have more years like this one and win the award again."