Three birdies in the final five holes salvaged Louis Oosthuizen’s first round at the 98th PGA Championship at Baltusrol Golf Club in New Jersey on Thursday. Oosthuizen carded a two-under 68 to leave him just three shots off the lead‚ held by American Jimmy Walker on a sweltering day. On the long 17th Oosthuizen hit a huge 315m drive but just missed the fairway. His second from 250m came up pin-high and he chipped to two feet and tapped in for birdie. The par-five 18th saw a more conservative play from Oosthuizen who drifted off the fairway with his drive‚ laid up to 65m‚ chipped to five feet and holed the putt. Former PGA winner Martin Kaymer from Germany shares second place at four-under with Argentina’s Emiliano Grillo and England’s Ross Fisher. World No 1 Jason Day also shot a 68 while Open-winner Henrik Stenson signed for a 67 to leave himself well in the hunt on a day when some of the pre-tournament favourites faltered. US Open champion Dustin Johnson struggled on his way to a 77‚ which barring something sensational in round two on Friday‚ should see him miss the cut. Four-time Major winner Rory McIlroy struggled to a four-over 74 on the lengthy par-70 layout‚ while Phil Mickelson rallied late in his round to card a 71. South Africa’s Branden Grace is in contention after an even par 70 while Ernie Els and Charl Schwartzel both have work to do to make the cut after each shooting 73. George Coetzee returned a 72. Day’s round was remarkable considering he only at one practice round at the course and spent most of Wednesday night at a hospital with his wife Ellie‚ who suffered an allergic reaction. He was also suffering from a cough‚ picked up from his small children‚ but managed the 36-degree conditions well. "That's part of having a family‚” Day said. “Things aren't going to be perfect all the time. I enjoy having my family on the road. "It's not the first time that the kids and myself and (wife) Ellie have been sick. It's not going to be the last time. "It's speed bumps that you have got to try and slow down and get around. Come out and execute." Stenson‚ who shot a 63 in the final round of the Open at Royal Troon 12 days ago‚ said he was still confident in his game after winning his maiden Major. “I feel like I'm pretty clear on what I need to do with my game‚ with my swing and everything‚” Stenson said. “The challenge this week was to be back in there mentally and focused and on one or two occasions I slipped and I probably paid the price.“But the most important thing is what you do afterwards‚ and I felt like I gave myself a little kick in the butt after missing that one [a three-foot putt on the ninth]‚ and I was better at committing on my lines than my strokes from there on.” Scores: -5 Jimmy Walker (US) 65-4 Emiliano Grillo (Argentina) 66 Ross Fisher (Britain) 66 Martin Kaymer (Germany) 66-3 Henrik Stenson (Sweden) 67 Andy Sullivan (Britain) 67 James Hahn (US) 67 Harris English (US) 67-2 David Lingmerth (Sweden) 68 Rickie Fowler (US) 68 K.J. Choi (Korea) 68 Scott Hend (Australia) 68 Brooks Koepka (US) 68 Robert Streb (US) 68 Vaughn Taylor (US) 68 Jason Day (Australia) 68 Louis Oosthuizen (South Africa) 68 Jhonattan Vegas (Venezuela) 68 John Senden (Australia) 68 Russell Henley (US) 68-1 Rich Beem (US) 69 Steve Stricker (US) 69 Colt Knost (US) 69 Jamie Donaldson (Britain) 69 Webb Simpson (US) 69 Danny Lee (New Zealand) 69 Gregory Bourdy (France) 69 Lee Westwood (Britain) 69 Justin Thomas (US) 69 Paul Casey (Britain) 69 Victor Dubuisson (France) 69 Bradley Dredge (Britain) 69 Jon Curran (US) 69 Chris Wood (Britain) 69 Hideki Matsuyama (Japan) 690 Aaron Baddeley (Australia) 70 Branden Grace (South Africa) 70 Jason Kokrak (US) 70 Brian Stuard (US) 70 Soren Kjeldsen (Denmark) 70 Bill Haas (US) 70 Adam Scott (Australia) 70 Jordan Spieth (US) 70 Russell Knox (Britain) 70 Kiradech Aphibarnrat (Thailand) 70 Justin Rose (Britain) 70 Patrick Reed (US) 70 William McGirt (US) 70 Yuta Ikeda (Japan) 70 Alexander Noren (Sweden) 70 Andrew Johnston (Britain) 70 Thorbjorn Olesen (Denmark) 70 Kyle Reifers (US) 70 Daniel Summerhays (US) 701 Song Young-Han (Korea) 71 Kim Si-Woo (Korea) 71 Ryan Palmer (US) 71 Rob Labritz (US) 71 Ryan Moore (US) 71 Sergio Garcia (Spain) 71 Thomas Pieters (Belgium) 71 Danny Willett (Britain) 71 Bubba Watson (US) 71 Marc Leishman (Australia) 71 Jason Dufner (US) 71 Brendan Steele (US) 71 Francesco Molinari (Italy) 71 Jamie Lovemark (US) 71 Hideto Tanihara (Japan) 71 Marcus Fraser (Australia) 71 Kevin Na (US) 71 Phil Mickelson (US) 71 Jason Bohn (US) 71 Patton Kizzire (US) 71 Fredrik Jacobson (Sweden) 71 Tyrrell Hatton (Britain) 71 Padraig Harrington (Ireland) 71 Zach Johnson (US) 71 Kevin Kisner (US) 71 Daniel Berger (US) 712 Kristoffer Broberg (Sweden) 72 Rikard Karlberg (Sweden) 72 Rafael Cabrera-Bello (Spain) 72 Billy Hurley III (US) 72 Omar Uresti (US) 72 Greg Chalmers (Australia) 72 Roberto Castro (US) 72 Shane Lowry (Ireland) 72 Yang Yong-Eun (Korea) 72 An Byeong-Hun (Korea) 72 Thongchai Jaidee (Thailand) 72 Joost Luiten (Netherlands) 72 Ben Polland (US) 72 Harold Varner III (US) 72 Johan Kok (South Africa) 72 Kevin Chappell (US) 72 Scott Piercy (US) 72 Michael Block (US) 72 George Coetzee (South Africa) 72 Nicolas Colsaerts (Belgium) 72 Ryan Helminen (US) 72 Rich Berberian Jr. (US) 72 Matthew Fitzpatrick (Britain) 72 Billy Horschel (US) 72 Luke Donald (Britain) 72 Cameron Tringale (US) 723 Anirban Lahiri (India) 73 Gary Woodland (US) 73 Peter Malnati (US) 73 Charl Schwartzel (South Africa) 73 David Muttitt (US) 73 Smylie Kaufman (US) 73 Zachary Blair (US) 73 Rod Perry (US) 73 Brandt Snedeker (US) 73 Keegan Bradley (US) 73 Wang Jeung-Hun (Korea) 73 Matt Dobyns (US) 73 Ernie Els (South Africa) 73– TMG Sport..