OLYMPICS

DALLAS (AP) U.S. Open champion Dustin Johnson withdrew from the Rio Games because of concerns over the Zika virus, costing golf three of the world's top four players for its return to the Olympics after a 112-year absence.

Jordan Spieth is the only player from the top four who has not said if he is going to Brazil. A decision could come as early as this weekend ahead of the British Open. Rickie Fowler also is undecided.

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Johnson, No. 2 in the world after his U.S. Open title and another World Golf Championship victory last week, is the 13th player to pull out of the Rio Games. Eight of them, including world No. 1 Jason Day and world No. 4 Rory McIlroy, specifically have cited Zika as the reason.

SAN JOSE, Calif. (AP) - Simone Biles is just four rotations away from her long-awaited trip to Rio de Janeiro.

The three-time world champion led the way during the first night of U.S. Olympic women's gymnastics trials. The 19-year-old Biles, a lock to make the five-woman team when it is announced on Sunday night, wasn't as sharp as usual, but her score of 61.850 was a touch better than rising star Laurie Hernandez.

EUGENE, Ore. (AP) - High-school sprinters Michael Norman and Noah Lyles won their 200-meter semifinals at U.S. Track and Field Trials to move one race away from the Olympics.

LaShawn Merritt ran the world's fastest time of the year at the distance, 19.74 seconds, to easily win his semifinal heat. Merritt has already qualified for the 400. Also in Saturday's 200 final will be Justin Gatlin and Tyson Gay.

On the women's side, Allyson Felix cruised through her first-round heat at 200 meters to keep her hopes alive for the 200-400 double in Rio.

Among those not going are Dawn Harper-Nelson, who won gold in 2008 and silver in 2012, but failed to make it out of the semifinals of 100-meter hurdles. And American record-holder Keni Harrison finished seventh in the hurdles final.

GOLF

SAN MARTIN, Calif. (AP) - When Sung Hyun Park entered her first U.S. Women's Open, her goals were modest. Halfway through the tournament, Park has put herself in prime position to contend.

Park capitalized on the favorable morning scoring conditions, shooting a 6-under 72 Friday to take a two-stroke lead after the second round of the U.S. Women's Open at CordeValle.

Park had four birdies in a six-hole span to move to 9 under before struggling on the final two holes.

Amy Yang shot a 71 to get to 6 under, tied for second with first-round leader Mirim Lee. World No. 1 Lydia Ko bounced back from a 1-over par first round to shoot 66 for a tie for fourth with Haru Nomura.

ENDICOTT, N.Y. (AP) - Scott Dunlap shot an 8-under-par 64 on Friday to take the first-round lead at the Dick's Sporting Goods Open.

Dunlap began the round with a bogey at No. 1, then rallied with four birdies in a five-hole span before the turn at En-Joie Golf Club and reeled off five straight birdies to start the back nine. He leads Glen Day, Bart Bryant, and John Riegger, who were tied for second at 66.

Gibby Gilbert III, Kevin Sutherland, Paul Goydos and Joe Durant were another shot back in a tie for fifth.

John Daly, Steve Lowery and Jay Haas were among nine players at 4 under, Frenchman Jean Van de Velde shot 75 in his Champions Tour debut, and Vijay Singh shot 3-under 69.

BASEBALL

CHICAGO (AP) - The Chicago White Sox became the first team in the majors to turn three triple plays in a season since the 1979, turning one in the third inning of their 11-8 loss to the Atlanta Braves.

With Chase d'Arnaud on second base and Gordon Beckham on first, Atlanta's Freddie Freeman hit a soft liner off Chicago's Chris Sale that rookie shortstop Tim Anderson trapped.

Anderson tagged d'Arnaud as he tried to retreat to second for the first out. Anderson stepped on second to force out Beckham, then threw to first baseman Jose Abreu to get Freeman.

Chicago turned triple plays on April 22, against Texas and May 18, against Houston.

In 1979, both the Oakland Athletics and Boston Red Sox turned three triple plays.

NEW YORK (AP) - Bartolo Colon and Max Scherzer are headed to the All-Star Game, picked as replacements for other pitchers originally selected to the National League team.

Major League Baseball also announced that Toronto Blue Jays outfielder Michael Saunders and San Francisco Giants first baseman Brandon Belt won the final two All-Star roster spots, elected by fans in online balloting.

The 43-year-old Colon was chosen to replace Madison Bumgarner in Tuesday's showcase in San Diego because the Giants ace is scheduled to pitch Sunday against Arizona.

Scherzer (9-6, 3.21 ERA, major league-leading 155 strikeouts) was selected to his fourth straight All-Star Game. He will substitute for Washington Nationals teammate Stephen Strasburg, who came off the disabled list this week and won't pitch in the showcase as a precaution.

LOS ANGELES (AP) - The San Diego Padres have agreed to terms with 17-year-old Cuban pitcher Adrian Morejon, pending a physical.

The left-hander led Cuba's 15-under league with 113 strikeouts in 68.0 innings in 2014, and had a 1.93 ERA while issuing 40 walks. Morejon was named most valuable player of the 15-under World Cup in Mexico, where he threw a complete game with 12 strikeouts in Cuba's 6-3 win over the U.S. in the gold medal game.

COLLEGE BASKETBALL

Larry Brown is leaving SMU after turning down a contract extension, ending a four-year run during which the Mustangs made the NCAA Tournament for the first time since 1993 and then were banned from postseason play last season.

SMU athletic director Rick Hart said Brown, who was signed through next season, had been offered a new deal through 2020.

Brown didn't return messages left on his cellphone by The Associated Press.

The Hall of Fame coach had repeatedly said how much he loved what he was accomplishing at SMU. Brown, who turns 76 in September, had indicated late last season that he wanted to keep coaching as long as SMU would have him.

AUTO RACING

SPARTA, Ky. (AP) - Kyle Busch led 185 laps and caught a huge break before surviving a final restart to win the 300-mile NASCAR Xfinity Series race at Kentucky Speedway.

The defending Sprint Cup Series champion needed overtime to win in his No. 18 Toyota, with the race going one circuit past its scheduled 200 laps after a late caution. Busch then outdueled Daniel Suarez and Austin Dillon in a three-wide restart to earn his first series win at Kentucky since 2004.

Busch benefited from a late mistake by Erik Jones. He passed Busch for the lead after a lap 174 restart just before the fourth yellow, but inadvertently shut off his car and fell to third as a penalty for failing to keep up with the pace car.

Dillon was second in a Chevy, with Suarez third in a Toyota and Jones fourth in a Toyota.

UFC

LAS VEGAS (AP) - A doping test on Jon Jones' backup sample has confirmed the positive results that forced the UFC to drop the pound-for-pound star from his main-event bout at UFC 200 this week.

USADA spokesman Ryan Madden confirmed an independent lab's findings on Jones' B sample.

Jones was removed from the UFC's landmark card on Wednesday night after the potential doping violation was first discovered in a sample taken June 16.

Jones and his management haven't revealed the substance for which Jones tested positive, but the fighter tearfully denied knowingly using any performance-enhancing drugs.