Sports briefly: Bryan brothers say they won't risk Rio

Bob and Mike Bryan will not defend their Olympic doubles title in Rio de Janeiro, citing health concerns.

The American twins announced their withdrawal on Facebook on Saturday, saying that as "husbands and fathers, our family's health is now our top priority."

They didn't mention the Zika virus, which has been linked to birth defects and been cited by several athletes in tennis and other sports who opted to skip the Summer Games that begin next week in Brazil.

The Bryans won a gold medal at the 2012 London Olympics, after collecting bronze in doubles at the 2008 Beijing Games.

They have won 16 Grand Slam titles, a record in men's doubles.

The U.S. Tennis Association said it was looking into its options for replacing the Bryans in Rio.

The top-ranked U.S. man in singles, John Isner, and Sam Querrey also are skipping the Rio Olympics. Isner said he is not going because ATP ranking points are not available.

Released bad news and good: New England Revolution forward Charlie Davies, who revealed he was diagnosed with cancer this spring and that the cancer, liposarcoma, is in remission.

Broke new ground: William Byron, an 18-year-old who won his fifth Truck Series race Saturday at Pocono in Pennsylvania, setting a record for rookies on the circuit.

Accepted his reward: Oakland Raiders General Manager Reggie McKenzie, who signed a four-year contract extension. The Raiders are expected to contend for a division title this season.

Said he's still a no-go: Dale Earnhardt, who will miss his third consecutive Sprint Cup race Sunday. Earnhardt said his concussion symptoms have not improved.

The IOC has set up a special three-person panel to make a final ruling on which individual Russian athletes will be allowed to compete in the Rio de Janeiro Olympics.

The Russian track and field and weightlifting teams have been entirely banned from the Olympics because of systematic doping, but individual athletes are allowed to apply for admission.

Former Texas A&M football player Antonio Armstrong and his wife, Dawn, were shot and killed in the bedroom of their Houston home on Friday, and their 16-year-old son was charged with murder.

The Armstrongs were both 42. Police indicated there was nothing family members could tell them that explained the deaths.

Antonio Armstrong was an All-America selection who played briefly for Miami of the NFL.

Soccer: Frank Lampard scored three goals and New York City FC beat Colorado 5-1 to end the Rapids' 15-match unbeaten streak.

Men's tennis: Top-ranked Novak Djokovic beat 10th-seeded Gael Monfils 6-3, 6-2 in Toronto to reach the Rogers Cup final. He'll play third-seeded Kei Nishikori, who beat second-seeded Stan Wawrinka 7-6 (6), 6-1.

Auto racing: Rookie Erik Jones took the lead from Ty Dillon with 16 laps to go and won an Xfinity series race at Iowa Speedway in Newton. Dillon finished second.

WNBA: Australian star Penny Taylor said she will retire from basketball at the end of the WNBA season. Taylor, 35, helped the Phoenix Mercury win three WNBA titles and guided Australia to a world championship in 2006.

Mixed martial arts: Tyron Woodley took the UFC welterweight title from Robbie Lawler, ending their bout in Atlanta in the first round with a right hand.

10The team of refugees who will march under a white Olympic flag in the Opening Ceremony on Friday will have 10 athletes, the IOC said. It's the first such team in history.