Tiger Woods flips his putter after missing birdie putt on the 18th hole during the second round of the 89th PGA Golf Championship at the Southern Hills Country Club in Tulsa, Okla., Friday, Aug. 10, 2007. Woods took the lead with a 6-under-par after two days of play.

Tiger Woods flips his putter after missing birdie putt on the 18th hole during the second round of the 89th PGA Golf Championship at the Southern Hills Country Club in Tulsa, Okla., Friday, Aug. 10, 2007. Woods took the lead with a 6-under-par after two days of play.