Jordan Spieth is happy to wait for a career Grand Slam, but admits the US PGA Championship shapes as being tough for him to win.
The American three-time major winner carded a third straight round in the 70s at Quail Hollow, shooting an even-par 71 on Saturday.
Spieth, 24, was aiming to become the youngest player to win the career Grand Slam, but he sits at three over and is set to have to wait to complete the set.
While he has always wanted to win all four majors, Spieth said he felt the US PGA would be the most difficult.
"I didn't have it written in a diary from when I was young that I need to win a career Grand Slam as the youngest ever. That wasn't the goal," he said.
"The goal was to try and win them all. The goal was to try and get on the PGA Tour and then from there see what happens. And yeah, I have a lot of opportunities.
"The PGA Championship I think is going to be the toughest for me. If we look historically back on my career, I think I will play this tournament worse than the other three majors just in the way that it's set up.
"I feel like my game truly suits the other three majors maybe more than a PGA Championship. But I believe we can play anywhere and can win anywhere.
"It's just a matter of having everything in sync at the right time."
Spieth missed the cut in his first two appearances at the US PGA before finishing second in 2015 and tied for 13th last year.
|PSG asked for Nice midfielder Seri to f*** Barca – agent|
|I think WTF? It´s your job – Klopp tells players to deliver|
|Red Sox add speedy outfielder Davis in trade with A´s|
|Neymar on same level as Messi and Ronaldo – Dupraz|
|Season over for Cardinals closer Rosenthal, who needs Tommy John surgery|
|Britton´s record consecutive saves streak ends at 60|
|Surely there´s better? – Riise questions Lovren|
|Hansen: All Blacks have to be better|
|Real Madrid 2 Fiorentina 1: Banned Ronaldo nets stunner in Trofeo Santiago Bernabeu|
|Gay players in Premier League would get respect - Pogba|
|Mayweather confident McGregor ´gamble´ will pay off|
|Nagelsmann slams Hoffenheim´s Anfield collapse|
|Klopp delights in Liverpool´s perfect storm|
|Champions League Review: Can bags brace as Liverpool qualify|
|Champions League is where Liverpool belong - Henderson|
|Wolves, Forest provide EFL Cup shocks as Burnley claim derby bragging rights|
|McGregor vows to break ´old man´ Mayweather|
|Thomas´ injury was significant concern – Celtics GM|
|White: McGregor will become the biggest star on earth|
|Liverpool 4 Hoffenheim 2 (6-3 agg): Can at the double in Reds´ Champions League romp|
|De Boer unsure of Zaha return date|
|Messi and Pogba launch UEFA initiative|
|Koeman respects Rooney´s England retirement|
|Billy Payne retiring as Masters, Augusta National chairman|
|The poor kids are freezing - Law blames English weather for Windies´ woes|
|Carragher endorses Rooney´s England retirement|
|Bairstow claims consistency is the key for England|
|Sanchez: Spurs move is huge step forward|
|Hometown hero Rooney right to call time on England days|
|Dane Coles set for long-awaited All Blacks return|
|Evans would shine for Man City, says Northern Ireland coach O´Neill|
|Anything could happen - Becker excited ahead of US Open|
|FIFA takes control of Cameroon´s FA|
|Clucas completes Swansea move|
|Talent means nothing to me – Mertesacker outlines academy ethos|
|Schumacher Jr to drive at Belgian Grand Prix|
|Froome gains valuable Vuelta seconds as Lutsenko solos to victory|
|Emery embracing Neymar whirlwind as PSG aim to conquer the world|
|No words needed - Juventus midfielder Marchisio rejects transfer speculation|
|Vettel aiming to spoil Hamilton landmark – Belgian GP in numbers|
|Favre critical of Balotelli performance after jewellery shenanigans|
|Atletico star Griezmann lands two-game ban for ref outburst|
|A magnificent international career - Lineker and Owen lead Rooney tributes|
|West Brom tie Dawson to new contract|
|Toulouse confirm back operation for Scotland forward Gray|
|De Villiers commits to Test comeback, but relinquishes ODI captaincy|
|Record at 17 to striking down Scotland – Rooney´s top five England performances|
|Huddersfield snap up Sabiri|
|Gazzaniga joins Tottenham on five-year deal|
|England still need him - Eriksson urges Rooney retirement rethink|
|53 goals, but just one at the World Cup - Wayne Rooney´s England career in Opta stats|
|Maxwell struck by heatstroke in Bangladesh|
|Kawasaki Frontale 3 Urawa Reds 1: Kobayashi double puts hosts in control|
|Wayne Rooney retires from England international duty|
|Biggar focused on Ospreys amid Saints speculation - Tandy|
|Mayweather v McGregor: They said what?! The best sound bites from a verbal sparring epic|
|Vandoorne retains McLaren seat for 2018|
|FIFA investigating Neymar complaint over unpaid Barcelona loyalty bonus|
|Wasps rest Lions star Daly amid burnout fears|
|Liverpool great Souness ´would snap Barcelona´s hand off´ for massive Coutinho fee|
|Walker-Peters signs new Tottenham contract after impressive debut|
|Sarri eyes Manchester United after Napoli reach Champions League groups|
|Appeal against Force Super Rugby axing adjourned|
|Ronaldo to play 90 minutes in Santiago Bernabeu Trophy clash|
|Seri denies Barcelona move has been agreed|
|Barcelona confirm hacking after Di Maria ´announcement´|
|Roark helps Nationals fend off Astros|
|Ancelotti: Bayern academy a good answer to Neymar move|
|Bautista Agut, Isner among winners as Verdasco, Simon crash out|
|LeBron calls Irving ´special talent´ in goodbye tweet|