Tiger Woods is growing frustrated that he still does not know when he will be able to competitively play golf again following his car crash.

The 15-time major champion was involved in a single-car accident a year ago that left him with open fractures to the tibia and fibula in his right leg.

Woods has not played competitively since and warned in December his return was a "long way off".

But the American superstar seemingly would have hoped to be able to provide a further update by now, as he revealed his irritation when speaking at the Genesis Invitational on Wednesday.

"I wish I could tell you when I'm playing again," he said. "I want to know, but I don't."

Woods revealed he still has difficulty walking, although he is "getting better" – just not as quickly as he would like.

"My golf activity has been very limited," he said. "I can chip and putt really well and hit short irons very well, but I haven't done any long stuff seriously.

"I'm still working. I'm still working on the walking part. My foot was a little messed up there about a year ago, so the walking part is something that I'm still working on, working on strength and development in that.

"It takes time. What's frustrating is it's not at my timetable. I want to be at a certain place, but I'm not. I've just got to continue working.

"I'm getting better, yes. But as I said, not at the speed and rate that I would like.

"You add in the age factor, too. You just don't quite heal as fast, which is frustrating."

Collin Morikawa has rejected the advances of the Saudi-backed Super Golf League to remain on the PGA Tour.

A number of high-profile players are said to have been targeted by organisers of the lucrative new league, including Dustin Johnson, Bryson DeChambeau and Phil Mickelson.

Speaking on Tuesday, two-time major champion Morikawa revealed he was among those who had received interest.

But in a major boost to the PGA Tour, the 25-year-old will not switch circuits – and he hinted other leading stars are making the same decision.

"I'm all for the PGA Tour," Morikawa said ahead of the Genesis Invitational.

"I've been a pro for two and a half years. My entire life I've thought about the PGA Tour. I've thought about playing against Tiger [Woods], beating his records, whatever, something that might not even be breakable.

"But I've never had another thought of what's out there, right? I've never thought about anything else, it's always been the PGA Tour."

He added: "Right now, you look at the best players that I see and they're all sticking with the PGA Tour, and that's where I kind of stay and that's where I belong. I'm very happy to be here."

Former US Open champion Bryson DeChambeau has dismissed reports linking him with the start-up Saudi Golf League as "inaccurate" after withdrawing from this week's Genesis Invitational.

World number 12 DeChambeau, who won the US Open in 2020, pulled out of the Genesis Invitational due to hip and hand injuries.

The withdrawal comes following a report earlier this month that the 28-year-old American had been offered $135 million to join the Saudi-backed startup league, which would render him unavailable for the PGA Tour.

"I am very disappointed to miss the (Genesis Invitational) this week at one of my favorite golf courses on tour," DeChambeau wrote on Twitter on Monday.

"I am currently in the process of rehabbing a hip and hand injury, which I am making positive progress on day by day.

"There are many false reports going around by the media that are completely inaccurate. Any news regarding my health or playing schedule will come directly from me and my team only.

"This is just another inaccurate report. I look forward to getting healthy and seeing everyone soon!"

DeChambeau had recently stated he agreed with Charley Hoffman's social media post calling for changes on the PGA Tour after he was penalised one stroke when his ball rolled into the water while taking a penalty drop.

Hoffman wrote: "You wonder why guys are wanting to jump ship and go play on another tour", further fuelling the DeChambeau speculation.

Scottie Scheffler edged Patrick Cantlay in a three-hole playoff to clinch the Phoenix Open title marking a dramatic turnaround after narrowly avoiding the cut on Friday.

World number 15 Scheffler and reigning PGA Tour Player of the Year Cantlay faced off after both finished 16-under-par following final day rounds of four-under-67.

Scheffler, who avoided the cut by one stroke, claimed the title with a birdie on the third hole of the playoff as Cantlay could only make par.

The 25-year-old American, who resides in Dallas, landed his second shot from the bunker on the green, before sinking a 26-yard putt for the decisive birdie, with Cantlay unable to match that.

The victory marks 2021 US Ryder Cup team member Scheffler's first PGA Tour title, having finished in the top 10 of three majors last year.

Scheffler had birdies on the 15th and the 17th holes to force his way into a playoff, although he almost won it outright on the 18th but missed a birdie putt from five feet.

Overnight leader Sahith Theegala found the water off the tee on the penultimate hole leading to a bogey that saw him slip from the lead.

Four-time major winner Brooks Koepka stormed into contention late, with three birdies and a bogey on his final four holes but fell short of the playoff.

Koepka and Theegala finished tied for third with Tokyo Olympics gold medalist Xander Schauffele at 15 under.

Scheffler had surged up the leaderboard on the third day with a nine-under-62 and backed that up with another strong round on Sunday.

Sam Ryder admitted he is still coming down off the adrenaline after his exhilarating hole in one on the 16th hole at the Phoenix Open on Saturday.

Ryder, who had endured a difficult round which included four bogeys and a double bogey, landed the ace, ushering in wild scenes of celebration from the packed onlooking crowd.

Play had to be halted for 15 minutes as debris was cleared off the course after the crowd splashed drinks and threw beer cans in the air in a raucous celebration of a rare feat.

The 32-year-old American became the first player to hit a hole in one on the 16th at Scottsdale since Francesco Molinari in 2015. Ryder is also the 10th player to achieve the feat.

“Still kind of coming down off the adrenaline,” Ryder told reporters, “But, yeah, it was pretty crazy.

"It's got to be number one. Nothing compares to that... it was a blur. I can't describe it."

Ryder hit a 124-yard tee shot which spun left and into the cup for the ace, re-living it afterwards.

"[Chris Kirk] hit a really good shot in the middle of the green, so I kind of got a little bit of feel off of what it was playing," Ryder explained. "It was just one of those things I was talking to my caddie, and it just ended up being a perfect 54 degree wedge.

"The club - everything always plays a little shorter in there, adrenaline or whatever it is, it's just, it always plays shorter. I just told him, 'it's just got to be that, doesn't it?' And he's like, 'that's all I ever thought'.

"We just talked through it a little bit and I was looking just out to the right and wanted to come down around his ball and maybe it was an accidental one-yard pull or something. It didn't look like it was moving too fast on the camera when I saw it, but in the air it just looked perfect."

Despite the hole in one, Ryder is eight strokes off the pace, sitting at six-under-overall ahead of the final day on Sunday.

Sahith Theegala recovered from a tricky start on Friday to maintain a breakout run at the Phoenix Open, where he now leads by two after two rounds.

Theegala, playing on a sponsor's exemption, had taken a one-shot lead into the day's play – albeit only after a suspension on Thursday due to bad light.

Starting with a par putt at the 17th on seven under, Theegala missed the hole and then bogeyed the 18th, too, falling back to five under.

But the 24-year-old, who turned professional in 2020 but is still living with his parents, got back in the groove in round two.

Three consecutive birdies and a fourth at the par-four fifth put Theegala in a great position, turning in 32 after a bogey at the eighth.

It only got better from there with a bogey-free back nine that featured four birdies, including at each of the last two holes – ending his Friday in far more convincing fashion than he had started it.

Theegala's only top-10 finish on the PGA Tour to date was a tie for eighth at the Sanderson Farms Championship in October, but he heads into the weekend at Scottsdale leading a star-studded field.

"I haven't had time to let it set in," he said after signing for a seven-under 64 to move to 12 under.

"Hopefully I don't think too much about it, because obviously what I've been doing has been working the first couple days.

"I'm just thankful that I'm here and trying to make the most of the opportunity – no expectations at all, honestly."

Having already threatened to crumble once, the pressure is only set to ramp up from here. Theegala's closest challengers are Brooks Koepka (66) and Xander Schauffele (65) at 10 under. Patrick Cantlay (66) is a shot further back.

"I'm ready to embrace whatever is ahead of me this weekend," Theegala added.

Brooks Koepka made a strong start to the Phoenix Open as he heads into day two in a tie for third at five under par, with the four-time major winner looking to put an "embarrassing" fall from grace behind him.

Koepka has not won a tournament since succeeding in Phoenix a little under a year ago – while he impressed at the PGA Championship in May, finishing joint-second, Koepka is not happy with how the past 12 months or so have gone.

He teed off in Arizona ranked 20th in the world, something of a far cry from spending 47 weeks at number one across 2018 and 2019 – three of his four major wins came in those years.

Koepka, rarely one to mince his words, feels ashamed of his slide, even if he puts it partly down to injury.

"That's embarrassing to be 20th, I feel like," he said after his first round on Thursday.

"A lot of it has to do with injury, man. I've been hurt, on the sidelines. Not playing, playing through injury, you can't compete with guys out here.

"It's nice to be somewhat healthy and get out here, and I mean, I'm not too worried about it [the ranking], it will bounce back up."

Indeed, there was nothing embarrassing about his performance at TPC Scottsdale on day one, his six birdies – offset by a single bogey – putting him right near the top of the leaderboard.

Nevertheless, he still has a plenty of work to do.

Lee Kyoung-hoon is one shot better off thanks to a glorious showing after the turn, playing the front nine five under par after starting on the ninth hole.

But leading the way is a surprise contender: 24-year-old Sahith Theegala, who is competing as a sponsor's exemption.

Theegala has a one-shot lead over Lee, though he had to finish his round while putting on his 17th hole of the day as play was suspended due to bad light.

Additionally, his next shot when he resumes in the morning will be a 16-foot putt for par, so his lead may not last for long.

A host of familiar names are not too far behind those leading the way, with Xander Schauffele, Louis Oosthuizen, Patrick Cantlay, Jon Rahm and Bubba Watson among a large group on four under.

Jordan Spieth is three shots further back.

Luke List has had a long wait for his first PGA Tour win and that was extended after a two-hour wait before triumphing in a playoff over Will Zalatoris at the Farmers Insurance Open on Saturday.

The 37-year-old American, enjoyed an excellent final round six-under-66, highlighted by four consecutive birdies from the third to the sixth holes, to storm up the leaderboard at Torrey Pines.

But List, in his 206th career start, waited almost two hours after entering the clubhouse as the overnight leaders completed their rounds before facing Zalatoris, who also finished 15-under overall, in an 18th hole playoff.

In fading light, the pair both landed their tee shots within inches of each other in a bunker, with List's third shot placed close to the hole, enabling him to tap in to card a birdie.

Zalatoris pushed his longer birdie putt, which was near-identical to his 18th hole putt for victory that he missed, wide left again to settle the playoff in List's favour.

California-born 25-year-old Zalatoris may have clinched victory on the 18th as List patiently waited and practiced elsewhere, but was agonizingly short and slightly wide after a late fade on his putt.

He carded a final round one-under-71, grouped alongside Jason Day and Aaron Rai, with world number one Jon Rahm also making a late charge.

Day shot into a share of the lead after landing an eagle on the 14th hole but had to settle for joint third alongside Rahm and Cameron Tringale at 14-under-par overall.

The Australian, who had not won a PGA Tour title in 1,364 days, finished with back-to-back bogeys to slip from contention.

Rahm rolled in a clutch 26-foot putt to birdie the 17th to be one shot off the pace but only managed par on the last hole.

Joaquin Niemann, Justin Rose, Pat Perez, Sungjae Im and Rai were next, finishing 13-under overall.

Will Zalatoris goes into the final round of the Farmers Insurance Open with a first PGA Tour win in his sights after a superb performance on day three.

Zalatoris claimed a share of the 54-hole lead with Jason Day thanks to a seven-under-par 65 at Torrey Pines.

That took him to 14 under, level with 2015 US PGA Championship winner Day, who carded a 67.

Zalatoris had started the day six strokes adrift of midway leaders Jon Rahm, Justin Thomas and Adam Schenk.

But an eagle at the par-four second gave him early momentum and five further gains followed in a blemish-free round for last season's Rookie of the Year.

That eagle featured a 338-yard tee shot as a day Zalatoris described as perhaps the best with the driver "maybe ever" put him in position to push for a maiden tour win.

Asked how much distance he has gained following a switch to a 46-inch driver, Zalatoris replied: "Twelve yards, I've clocked it up to 127 [mph clubhead speed] and have 186 ball speed so, around here, that's huge.

"Obviously you've seen what Bryson [DeChambeau] has done, you won't be seeing me at 220 [ball speed] anytime soon but definitely the added distance has really paid dividends."

Along with Day, Zalatoris still has Rahm in his rear-view mirror, a level-par 72 keeping him at 13 under, tied for third with Aaron Rai.

Rahm carded a double bogey at the 10th and lost another shot at the 12th, but he will hope his experience of winning the U.S. Open at Torrey Pines last year can help him recover on Saturday.

Thomas, meanwhile, carded a one-over 73 and has Cameron Tringale and Sungjae Im for company on 12 under.