Daniel Chopra took advantage of an opportunity to build a cushion at the Buick Open in Grand Blanc, Mich.

Chopra birdied the final hole yesterday after Dudley Hart bogeyed it, giving Chopra a two-shot lead with one round left at Warwick Hills

Chopra, of Sweden, made a 15-foot putt to close the third round at 4 under and reach 16-under 200. Hart (70), Bubba Watson (68) and Woody Austin (69) were tied for second.

Second-round leader Bo Van Pelt (73) was another shot back along with Kenny Perry (67), the highest-ranked player in a lackluster field that includes just three of the top 30 players in the world.

Chopra was alone atop the leader board for the first time at the ninth hole when Hart had his first bogey of the tournament.

Chopra won the season-opening Mercedes-Benz Championship, but has failed to crack the top 30 in any tournament since.

U.S. Open runner-up and Greensburg native Rocco Mediate (67) was 9 under for the tournament and said he's too tired to stay in Michigan tomorrow to play in the British Open qualifier.

Other tournaments

• Commerce Bank Championship: Loren Roberts had four birdies on the back nine and shot a 3-under 68, extending his lead to two strokes after two rounds in East Meadow, N.Y. David Eger (66) and Scott Simpson (67) shared second at 7-under 135 in the $1.6 million Champions Tour event.

• French Open: Spanish qualifier Pablo Larrazabal shot a 4-under 67 and held a three-stroke lead after three rounds in Saint-Quentin-En-Yvelines. He was at 11-under 202, with Scotland's Colin Montgomerie (68) and Denmark's Soren Hansen (67) sharing second place.