Henrik Stenson will carry a one-shot lead into the final round of the Arnold Palmer Invitational after recording a 71 to move to 12 under on Saturday.
The Swede shared the leaderboard summit with Bryson DeChambeau coming into the third day's play, but a round of one under was enough to see him out on his own at Bay Hill.
And it is DeChambeau who represents Stenson's closest challenger, the American sitting one stroke back following an even-par 72.
The 2016 Open champion Stenson carded four birdies and three bogeys, which allowed Rory McIlroy to gain ground thanks to his excellent 67 – the highlight of which was an eagle at the par-five 12th.
The Northern Irishman is a shot further back in third, ahead of Justin Rose – who matched McIlroy in making 67 – and Ryan Moore, who signed for a three-under 69.
Rickie Fowler (70) is one of a quartet on eight under, four off the lead, while eight-time champion Tiger Woods made six birdies and three bogeys in his 69 to get to seven under.
Speaking to the media afterwards, Stenson felt as though he could have been sat on a more significant buffer heading into Sunday and hinted towards a feeling of "unfinished business" at this event after ending as runner-up to Matt Every in 2015 followed by a tied-third finish 12 months later.
"I felt like I left one or two out there coming in and I definitely could have wrapped up a two or three-shot lead for tomorrow which would have been a nice cushion, but it didn't happen," he said.
"It wouldn't be the only tournament where you feel like you've got unfinished business.
"I've been up in the mix a few times and I'm there again so of course I'd like to see a different outcome, but it's going to take some good golfing."
|Bruno Mars, Britney Spears to perform at US GP|
|Mourinho suggests United were ´not prepared to win´ before his arrival|
|Wolves in the clear over Mendes link-up|
|Salzburg first, history later for Garcia and Marseille|
|Nadal overcomes plucky Carballes Baena to make more clay history|
|Tennis´ governing bodies acknowledge ´vulnerabilities´ after independent integrity review|
|Leeds owner defends controversial Myanmar tour|
|ICC apologises, launches investigation into controversial tweet|
|Moeen: England should have dropped me sooner|
|Henderson: Injured fan´s recovery is the only result that matters|
|Ronaldo sends signed shirt to Manchester United star Rashford|
|Independent review says tennis faces ´serious integrity problem´ with betting|
|Djokovic stunned by Klizan in Barcelona|
|This group deserves something special – Wenger wants to exit on a high|
|North to return to Wales with Ospreys|
|Vieira ´ready for Europe´ amid reported Arsenal interest|
|Wenger focused on Arsenal despite desire to keep working elsewhere|
|Mourinho has made me a better person, says McTominay|
|Gerard sacked as Barca B coach after woeful winless run|
|Sensational Storm demolish Warriors, Dragons win again|
|Bayern links ´an honour´ for Madrid man Bale|
|F1 Raceweek: Vettel closing in on milestone - Azerbaijan GP in numbers|
|It is wide open - Wozniacki hopeful over Roland Garros chances|
|Roma ashamed by Liverpool fan attack|
|Wade, Ginobili will not be rushed over retirement decisions|
|UEFA ´shocked by vile attack´ on Liverpool fan|
|Mayfield´s Big 12 dominance & Jackson the dual threat - The 2018 Quarterback class in Opta numbers|
|Campbell tips Vieira and Bergkamp to replace Wenger|
|Courtois to sue former Belgium coach Wilmots|
|Heavyweights Ronaldo and Lewandowski go head to head – Champions League in Opta numbers|
|Spurs, Heat eliminated as Celtics go up 3-2|
|Angels overcome Ohtani´s so-so outing to win series over Astros|
|Red Bull want Ricciardo decision by August|
|Rangers injuries piling up as Beltre leaves with hamstring issue|
|A´s closer Treinen exits after being hit by comebacker|
|Copa Libertadores Review: Gabriel leads Santos, Atletico cruise|
|He decides the biggest moments – Wijnaldum hails Salah|
|Finau ready to compete after freak ankle injury at Masters|
|Roma have some hope, says Monchi|
|Westbrook fined $10,000 for altercation with Gobert|
|Messi? Ronaldo? Salah is world´s best player – Gerrard|
|Liverpool are not Barcelona – Klopp cautious of Roma comeback|
|Liverpool supporter in ´critical condition´ after fan clashes|
|Gronkowski commits to 2018 season with Patriots|
|F1 Raceweek: Title race to heat up at venue of Vettel-Hamilton flashpoint|
|It´s all-inclusive football with Liverpool! - Klopp pleased despite Roma recovery|
|Montella to remain Sevilla coach until end of season|
|Di Francesco: Roma gave up – but if you don´t believe in a comeback, stay at home|
|Klopp accepts Salah substitution sparked Roma fightback|
|Oxlade-Chamberlain may miss World Cup after suffering ´a really bad injury´|
|De Rossi blames long balls for Roma ´blackout´ at Anfield|
|Trump happy to fly under the radar at World Championship|
|Late Liverpool lapses sour stunning Salah show|
|Henderson wary of Barcelona repeat as Roma leave Liverpool with hope|
|Championship Review: Cardiff slip up as Barnsley stay in the relegation zone|
|Goffin lives dangerously in Barcelona|
|Liverpool 5 Roma 2: Salah shines but late comeback offers Giallorossi hope|
|Salah sets Liverpool record with spectacular first-half double|
|Six first-round quarterbacks & two top-10 trades - 2018 NFL Mock Draft|
|Oxlade-Chamberlain carried off in Champions League semi-final|
|Indians equal lowest total in defeat to Sunrisers|
|Selby final frustration contributed to ´beginning of the end´ comment - Higgins|
|Wozniacki makes winning start as Radwanska retires|
|Firmino back, as Milner starts for Liverpool against Roma|
|I didn´t want James to go - Zidane ready for Champions League reunion with familiar face|
|Kroos: You can´t buy the Champions League|
|Strauss open to Springboks return|
|Shurmur ends Beckham Jr trade speculation|
|Leeds urged to help Rohingya during ´odd´ Myanmar tour|
|Garcia dumps fit-again Sharapova out in Stuttgart|