GOLF

Jordan Spieth put together another back nine filled with birdies and built a three-shot lead going into the final round of the Northern Trust at Old Westbury, New York.

Spieth seized control of the FedEx Cup playoff opener with three straight birdies starting on the 14th hole. He shot 31 on the back nine for a 6-under 64 to match the low round of the tournament. Spieth never has lost on the PGA Tour when leading by two or more shots going into the final round.

LPGA: Brooke Henderson, a local favorite, made a big move in the Canadian Pacific Women’s Open at Ottawa, Ontario, shooting an 8-under 63 to pull within three strokes of third-round leaders Nicole Broch Larsen and Mo Martin.

TENNIS

U.S. OPEN: Second-seeded Andy Murray surprisingly withdrew because of a hip injury, two days before the start of the Grand Slam event.

He hasn’t played a match since July 12 at Wimbledon, where he was clearly hampered by his hip during a five-set quarterfinal loss to Sam Querrey. Murray said the hip first bothered him during a semifinal loss to Stan Wawrinka at the French Open in June.

CONNECTICUT OPEN: Daria Gavrilova of Australia won her first WTA tournament title, upsetting second-seeded Dominika Cibulkova 4-6, 6-3, 6-4 at New Haven, Connecticut.

FOOTBALL

NFL: Jacksonville Coach Doug Marrone made a surprising announcement, naming Blake Bortles his starting quarterback for the season opener at Houston and ending any speculation heading into the preseason finale.

The decision came a little more than a week after Marrone opened up the job, and pleaded with Bortles and veteran Chad Henne to “go out there and take it.”

• Receiver Odell Beckham Jr. of the Giants sat out the Giants-Jets preseason game with a sprained left ankle.

HORSE RACING

TRAVERS STAKES: West Coast invaded the East to win the $1.25 million race at Saratoga against all three winners of this year’s Triple Crown races.

Gunnevera was second and Irap was third. Kentucky Derby winner Always Dreaming, Preakness winner Cloud Computing and Belmont winner Tapwrit finished out of the money in the 12-horse field..

SOCCER

MLS: Luciano Acosta scored off a volley from close range in the 71st minute and D.C. United beat the New England Revolution 1-0 at Washington for a third straight victory.

D.C. United (8-15-4) has won all three games 1-0, with the first two coming on own goals.

– Staff and news service report