Woods leads by one stroke

World number one Tiger Woods set the early pace at the US PGA Championship as he renewed his rivalry with defending champion Padraig Harrington.



Woods fired a faultless, five-under-par 67 to take the clubhouse lead on day one at Hazeltine National.



Irishman Harrington was not too far behind his American rival, hitting a 68 to lie one shot adrift.



Harrington\'s round included a bogey on the 10th, but five birdies ensured he remained high up the leaderboard.



Robert Allenby was at 3 under with Hunter Mahan, Matthew Goggin and Alvaro Quiros.