Peter Uihlein seized a one-stroke lead to carry into the final round of LIV Golf Jeddah after a seven-under-par 63 in Saudi Arabia on Saturday.

The American leapfrogged compatriot Brooks Koepka at the top of the leaderboard after an eagle and birdie on his final two holes took him to 12 under.

The only blot on his copybook at the Royal Greens Golf Club was a double bogey at the par-four 13th.

Koepka, who led after the first day of competition on Friday, carded a three-under round of 67 to stay in touch.

Two shots further back are South Africa's Charl Schwartzel and Sergio Garcia, with the Spaniard posting a bogey-free 64.

The inaugural individual LIV Golf champion Dustin Johnson stood five shots off the lead after a round of 65.

It was a disappointing day for Henrik Stenson, meanwhile, with the Swede sitting in last place after going round in 75, five over and for the tournament.

Charl Schwartzel survived a tense finish to the final round to hold off Hennie du Plessis by one shot and win the inaugural LIV Golf Invitational near London on Saturday. 

The South African carded a third-round 72 to finish seven-under par for the tournament, narrowly ahead of countryman Du Plessis in the 54-hole tournament.

A brilliant birdie on the final hole saw Peter Uihlein join Branden Grace one stroke further back at the Centurion Club to claim a share of third.

2011 Masters champion Schwartzel, one of seven major winners taking part in the breakaway series, will earn a reported $4.75million for his triumph.

He led the way at the end of the first two rounds and took a three-shot lead into the final day, which he started in good fashion by reaching the back nine without dropping a shot.

However, a double bogey on the par-four 12th opened the door for Du Plessis to make things a little more interesting in the race for golf's biggest ever prize.

Du Plessis got within a couple of shots of his Stinger GC team-mate, though Schwartzel had enough breathing space to finish with a bogey on the final hole that got him over the line.

"I was just trying to get this thing to the house. I had it in my hands and made it more difficult than it should have been," Schwartzel said.

"Hennie played fantastic golf and at 25 he has a bright future, he's playing fantastic golf. What [LIV Golf] have done is way beyond our expectations. It's out of this world."

Schwartzel, Du Plessis and Grace were all part of the same team, with Stinger finishing 14 shots ahead of the chasing pack.

Dustin Johnson, the highest-ranked player at the event, finished one-under par in eighth, while Phil Mickelson – the breakaway league's other superstar – was way down the leaderboard with 10 over.

The controversial Saudi-backed series will reconvene in Portland at the end of June for its second event, with more big names set to defect from the PGA Tour.

Patrick Reed and Pat Perez were confirmed as the latest to join the series on Saturday, while Bryson DeChambeau made the switch on Friday.