Leader Kevin Kisner and Chris Stroud, an unlikely final pairing, were set to tee off at the US PGA Championship as Hideki Matsuyama and Justin Thomas also eyed a maiden major crown.
Kisner, consistent throughout the year's final major at Quail Hollow, was due to begin his final round at 14:45 local time (18:45 GMT) with a one-shot lead.
The American looked comfortable during the third round and had a chance to pull clear before he reached the famed 'Green Mile', perhaps showing some early nerves, double-bogeying the 16th and dropping another shot at 18.
He would tee off with countryman Stroud, the 35-year-old only in the field thanks to his Barracuda Championship win last week.
Still, Matsuyama, who was at six under with Stroud, and Thomas – a further shot back – were favoured to win the Wanamaker Trophy in Charlotte, where hot and humid conditions again greeted players.
World number three Matsuyama admitted to nerves on Saturday after a scratchy two-over 73. He could become the first Japanese player to win a major.
Do you hit one-handed wedge shots during your warm-up?— PGA TOUR (@PGATOUR) August 13, 2017
Hideki does. pic.twitter.com/x546pEUleZ
Thomas shot a 59 on the PGA Tour earlier this year and a record-breaking 63 at the U.S. Open, and the American shaped as a huge threat.
South African Louis Oosthuizen, the 2010 Open champion, was alongside Thomas at five under.
The first hole was already offering great chances to players, with 11 birdies made – compared to none a day earlier.
The par-three fourth and par-five seventh, which have provided opportunities throughout the tournament, were also likely to be targeted.
The start of the back nine also offered chances before the 'Green Mile', with 16 through 18 proving tough once again.
World number one Dustin Johnson was the best of those who teed off in the morning, carding a four-under 67 to finish the tournament at even par.
Thundershowers were forecast in North Carolina on Sunday, but it was expected they would miss Quail Hollow.
A three-hole aggregate play-off would be played if required and with a leaderboard packed full of potential first-time major winners and nerves sure to be present, late drama was a possibility in Charlotte.
21 de agosto 2017
|Manchester City 1 Everton 1: Sterling strike denies visitors after Rooney milestone|
|Azarenka pulls out of US Open over childcare issue|
|Wayne Rooney scores 200th Premier League goal|
|Iturbe joins Tijuana on loan|
|Vardy fitness boost for Leicester ahead of Blades cup tie|
|Al Ain 0 Al Hilal 0: All square after scrappy quarter-final first leg|
|Clement reminds Abraham he´s ´not here on work experience´|
|FIA considering driverless safety car for F1 races|
|City to pay tribute to victims of Manchester and Catalonia attacks|
|De Ligt signs four-year Ajax extension|
|CAS dismisses Diack´s appeal against life ban|
|Chris Froome claims Vuelta red jersey, as Vincenzo Nibali wins stage three|
|Kondogbia departs Inter for Valencia loan|
|Carl Frampton splits from manager Barry McGuigan|
|Spurs star Kane unconcerned by continued August hoodoo|
|TIU investigating suspicious betting patterns around Dolgopolov-Monteiro|
|Cutrone to feature in Montella´s immediate Milan plans|
|Guardiola one of the best - Ederson had no doubts over Manchester City move|
|They´re just rumours - Nice´s Fournier plays down talk of Barca move for Seri|
|Chelsea´s ´great character´ key to Wembley win - David Luiz|
|Martial backs Pogba for Ballon d´Or within five years|
|This is not the movies - Ward ready to face Bellew at cruiserweight|
|So stupid - Muller rues knee injury after ´helicopter´ crash|
|Le´Veon Bell not leaving Steelers unless traded|
|Feyenoord sign winger Larsson from Heerenveen|
|Ritchie and Phillips return to Scotland squad for qualifiers|
|Gayle and Samuels return to West Indies ODI squad|
|Sakho asking price ´much too expensive´ for Palace boss De Boer|
|Costa calls Conte ´disrespectful´ over ´moment of madness´ text message|
|Ederson backs Neymar´s Ballon d´Or ambition|
|Pakistan to host World XI followed by Sri Lanka and West Indies|
|Burnley land Chris Wood in club-record transfer|
|Man City outcast Nasri joins Eto´o at Antalyaspor|
|Steve McClaren heads to Israel with Maccabi Tel Aviv|
|Mayweather v McGregor: Five things the UFC star has to do to shock the world|
|Wake up Floyd, it´s all over - McGregor trolls Mayweather with knockout prophecy|
|Early hours third-round draw brings more ridicule for EFL Cup|
|Arsenal send Jenkinson and Bramall to Birmingham|
|Mayweather-McGregor is a circus and I´d beat them both - Horn|
|Roberto eyes Barca stay after revelling in midfield role|
|Dimitrov seeking to harness Masters momentum ahead of Flushing Meadows|
|Lewandowski irked by busy Bayern pre-season|
|Legend Ambrose blasts ´embarrassing, pathetic´ West Indies|
|Lealiifano to join Ulster on short-term deal|
|Coutinho should decide his future - Manchester City´s Ederson supports Barca target|
|Windies´ Brathwaite reported for suspect action|
|Ibrahimovic fighting fit for possible Manchester United return|
|Halep apologises to fans after Muguruza mauling|
|Rummenigge defends Barcelona´s Dembele bid|
|Titans sack Henry but deny rift with Hayne|
|Fernandinho sounds Rooney warning for Manchester City|
|Brighton sign Izquierdo in club-record deal|
|Avila saves Cubs with walk-off hit against Blue Jays|
|MLS Review: NYC, Sounders score stoppage-time winners|
|LeBron to Knicks? Griffin can see it happening|
|They shouldn´t be there! – Neymar hits out at Barca board|
|QLD boss Walters dismisses Titans links|
|Ramos highlights animosity towards Madrid after red card|
|Boldin in shock NFL retirement after joining Bills|
|Lakers respond to tampering allegations surrounding George|
|Baghdatis wins through, Dolgopolov suffers shock loss|
|Mourinho tells Rashford to embrace boo boys|
|Lucic-Baroni battles in New Haven, Cornet cruises|
|Zidane wants no more changes to Madrid squad|
|Pastore rules out leaving PSG in swap for Mbappe|
|Messi will sign Barcelona contract – Fernandez|
|Real Madrid captain Sergio Ramos equals LaLiga record for red cards|
|Farah: I´ve run my last race for Great Britain|
|Stenson claims Wyndham Championship for first win of season|
|Spalletti eyes improvement despite convincing Inter win|