KEY POINTS:
American golfer Sean O'Hair fired a five-under 65 to take the first-round lead at the US$6.3 million ($8.6 million) Byron Nelson Championship in Texas yesterday.
Defending champion Brett Wetterich and Denmark's Anders Hansen were a shot back in second place at four-under in the tournament which is played on two different courses at the four seasons resort.
Luke Donald and Scott Verplank were in a group of five players a stroke further back. Kiwi Craig Perks is in a tie for 84th on the Cottonwood Valley course.