TENNIS

Djokovic, Chardy win Rogers Cup quarters; Serena Williams advances in women’s play

Top-ranked Novak Djokovic rallied to beat Latvia’s Ernests Gulbis 5-7, 7-6 (7), 6-1 on Friday night in the Rogers Cup quarterfinals.

The Serb, tourney champ in 2007, 2011 and 2012, has won 51 of 54 matches this year.

Djokovic will face France’s Jermey Chardy, a 6-7 (9), 7-6 (13), 7-6 (4) winner over American John Isner 6-7 (9), 7-6 (13), 7-6 (4).

 Top-ranked Serena Williams advanced to the women’s Rogers Cup semifinals in Toronto, beating Italy’s Roberta Vinci 6-4, 6-3.

FOOTBALL

CFL: For the second time in recent months, Michael Sam has left the Canadian Football League’s Montreal Alouettes, citing mental distress but leaving open the possibility he’d be back.

NCAA: Freshman receiver Cordell Broadus, the son of rapper Snoop Dogg, quit the UCLA team to pursue film studies.

 Minnesota Coach Jerry Kill agreed to a contract extension through the 2019 season.

OLYMPICS

WADA: The World Anti-Doping Agency has begun investigating allegations that a third of medals in endurance races at Olympics and world championships were won by athletes who have recorded suspicious blood readings.

2016 GAMES: The World Health Organization’s top water expert said WHO “never advised against viral testing” for Rio de Janeiro’s polluted waterways where about 1,400 athletes will compete.

MIXED MARTIAL ARTS

UFC: Nevada fight regulators imposed the maximum penalty on former champ Anderson Silva for testing positive for steroid use in January, suspending him for one year, stripping him of his win over Nick Diaz and fining him $380,000.

SOCCER

FIFA: Switzerland’s justice ministry gave its approval for the extradition of FIFA bribery case suspect Julio Rocha to Nicaragua.

GOLF

LPGA: Canadian teen Brooke Henderson birdied three of her last four holes for a 5-under 67 and the second-round lead in the Cambia Portland Classic in Oregon.

The 17-year-old had an 11-under 133 total for a one-shot lead over Caroline Masson.

– From news service reports