Brooks Koepka captured his second Phoenix Open crown and eighth PGA Tour title after rallying to a one-shot victory on Sunday.

Koepka was five strokes off the lead heading into the final round at TPC Scottsdale, where Jordan Spieth and Xander Schauffele had set the pace.

But four-time major champion Koepka reigned supreme after chipping in for an eagle on 17 as he signed for a six-under-par 65.

Koepka – winner of the Phoenix Open in 2015 – holed two eagles, three birdies and a bogey to close out the tournament 19 under overall.

It also secured Koepka's first success since the 2019 WGC-FedEx St. Jude Invitational.

Fellow American Schauffele (71) and South Korea's Lee Kyoung-hoon (68) finished tied for second position.

Carlos Ortiz (64), Steve Stricker (67) and former world number one Spieth (72) were a stroke further back at 17 under.

Spieth had been dreaming of a drought-ending triumph after earning a share of the three-stroke lead following the penultimate round.

Not since the 2017 Open Championship has Spieth claimed a title – the three-time major winner falling to 92nd in the world rankings as a result.

Spieth also missed six cuts in 20 events last year, while also failing to reach the weekend at the Farmers Insurance Open to begin his 2021 campaign.

But Spieth – who found the water on 15 and 17 – had to settle for a share of fourth place on Sunday.

Though, it was still Spieth's best finish on Tour since 2019.

In his Phoenix Open debut, four-time major winner Rory McIlroy posted a final-round 64 to climb 23 spots to T13, alongside Jon Rahm (68), Justin Thomas (72) and Harold Varner III (68).

Former world number one Jordan Spieth earned a share of the Phoenix Open lead following a stunning third-round performance on Saturday.

Not since the 2017 Open Championship has Spieth claimed a title – the three-time major winner falling to 92nd in the world rankings as a result.

Spieth also missed six cuts in 20 events last year, while also failing to reach the weekend at the Farmers Insurance Open to begin his 2021 campaign.

But Spieth is on track to end his drought at TPC Scottsdale in Arizona, where the American star is level with countryman Xander Schauffele (65) atop the leaderboard heading into Sunday's final round.

Spieth carded a 10-under-par 61 to catapult himself up the standings and to 18 under through 54 holes.

With 10 birdies and no bogeys, Spieth tied his career-low score – he has gone on to win nine tournaments when leading/co-leading after three rounds on the last 16 occasions.

"What I'm looking forward to is just staying the course, trusting it,'' said Spieth, who has his first 54-hole lead/co-lead on the PGA Tour since the 2018 Open. "I have no expectations on the results tomorrow. I really don't.''

"I built some freedom now seeing these results the first few days here to where I feel really good about the path I'm on,'' Spieth added. "I feel good about what the long term ahead looks like for me. And sometimes that's been in question. To myself.''

Scottie Scheffler (66) and Lee Kyoung-hoon (66) are three strokes off the pace, a shot ahead of Louis Oosthuizen (63) and Justin Thomas (64) at 14 under.

Four-time major champion Brooks Koepka posted a third-round 66 after birdieing five of his last six holes to be tied for seventh – five strokes behind Spieth and Schauffele.

Northern Irish star Rory McIlroy dropped down the leaderboard after carding a one-under-par 70 in round three.

Without a win since the 2019 WGC-HSBC Champions, four-time major winner McIlroy is six under overall and tied for 36th position.

Xander Schauffele produced a fast finish to grab a one-stroke lead at the halfway mark of the Phoenix Open.

The world number four made an eagle and four birdies on his final seven holes to card a seven-under 64 in the second round at TPC Scottsdale in Arizona on Friday.

Schauffele, who has top-five finishes in his two events this year, made three straight birdies from the 12th before an eagle at 15, and he picked up another shot at the last to get to 12 under.

The American is a stroke clear of Steve Stricker (66) and Keegan Bradley (65).

Since 2000, six 36-hole leaders or co-leaders have gone on to win the Phoenix Open, the most recent of which was Rickie Fowler in 2019.

Scottie Scheffler (65), Lee Kyoung-hoon (66) and Sam Burns (68) are tied for fourth at 10 under, a shot ahead of Nate Lashley (69).

Jordan Spieth, meanwhile, showed some good signs with another 67 seeing him sit at eight under and a tie for eighth.

The three-time major champion has fallen to 92nd in the world rankings and missed six cuts in 20 events last year, while also failing to reach the weekend at the Farmers Insurance Open to begin his 2021.

Spieth sits alongside Billy Horschel (68), James Hahn (67), Matthew NeSmith (71), 2015 champion Brooks Koepka (66), J.T. Poston (66), Patton Kizzire (65) and Carlos Ortiz (67) at the halfway mark.

Justin Thomas (65) is at seven under, while Rory McIlroy improved in the second round as a 67 moved him into five under and a tie for 27th.

Matthew NeSmith and Mark Hubbard earned a share of the lead following the opening round of the Phoenix Open.

American pair NeSmith and Hubbard both posted 63s to end Thursday a shot clear of countrymen Nate Lashley and Sam Burns at TPC Scottsdale.

Making his first start at the Phoenix Open, NeSmith holed four birdies and an eagle from his opening nine holes to earn an early lead at six under.

NeSmith closed out the round atop the leaderboard with Hubbard, who was flawless after tallying eight birdies, including his final four holes.

Steve Stricker is outright fifth following his six-under-par 65 in Scottsdale, Arizona, where Xander Schauffele is among six players five under through 18 holes.

Stricker joined Tom Lehman (2011, round one, aged 51) as the only players over the age of 50 to shoot 65 in the PGA Tour event.

Former world number one Jordan Spieth is four strokes off the pace following his first-round 67.

Struggling American star Spieth, who has not won since 2017, missed the cut at last week's Farmers Insurance Open.

Four-time major champion Brooks Koepka is a shot further back after mixing seven birdies with a double-bogey and two bogeys.

Koepka won the tournament in 2015 – his first PGA Tour triumph.

As for Rory McIlroy, he is seven shots behind NeSmith and Hubbard heading into Friday's second round.

Without a victory since the 2019 WGC-HSBC Champions, four-time major winner McIlroy recovered from a double-bogey, bogey start to open with a one-under-par 70 in his tournament bow.

Meanwhile, Webb Simpson started his title defence with a two-over-par 73 – a shot better off than 219 winner Rickie Fowler.

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