The American golfer David Toms frittered away a commanding seven-stroke lead to trail South Korean Charlie Wi by one shot after the third round at the Colonial Invitational in Texas.
On a blustery day at Colonial Country Club, American Toms struggled with his putting on the way to an ugly four-over-par 74 in his bid to end a PGA Tour title drought of five years.
Playing partner Wi, who has yet to win on the U.S. circuit, fired an ice-cool 66 that included five birdies and a lone bogey to hold the outright lead at 13 under.
John Senden is alone in third at nine under, a stroke in front of fellow Australian Stuart Appleby and Americans Paul Goydos and Mark Wilson.
