Sports log: Sprinter Tyson Gay tests positive


American 100-meter record holder Tyson Gay tested positive for a banned substance and said he will pull out of the world championships next month in Moscow. Gay wouldn’t reveal the substance in a phone conversation from Amsterdam on Sunday, but he said he was notified by the US Anti-Doping Agency late last week that a sample came back positive from a May 16 out-of-competition test. He said he will have his ‘‘B'’ sample tested soon, possibly as early as this week . . . Former 100-meter world-record holder Asafa Powell and Jamaican teammate Sherone Simpson have tested positive for banned stimulants, their agent told The Associated Press. Powell and Simpson tested positive for the stimulant oxilofrine at the Jamaican championships last month and were just recently notified.


Manziel leaves Manning’s camp early

Heisman Trophy winner Johnny Manziel left the Manning family’s football camp in Thibodaux, La., a day early after missing some of his assignments as a counselor and coach. ‘‘After missing and being late for some practice assignments, Johnny explained that he had been feeling ill. Consequently, we agreed that it was in everyone’s best interest for him to go home a day early,’’ said camp spokesman Greg Blackwell in a statement . . . The Broncos and All-Pro offensive tackle Ryan Clady agreed to terms on a five-year contract. The deal is reportedly worth $57.5 million with $33 million guaranteed . . . Penn State will open its 2014 season against Central Florida in Dublin Aug. 30. The game will air on ESPN2.


Rodriguez notches first extra-base hit

Alex Rodriguez had a run-scoring double and two RBIs for Class A Tampa, his first extra-base hit during a rehabilitation assignment. Rodriguez was 1 for 3 as the designated hitter against Bradenton. He is scheduled to join Double A Trenton for Monday’s game at Reading. Rodriguez is 3 for 21 with three RBIs and six strikeouts during his rehab. Asked about a report Sunday in the New York Daily News that his lawyers are discussing whether to seek an agreement from MLB on a 150-game suspension, Rodriguez responded: ‘‘I don’t know anything about that.’’ . . . Rays pitcher Alex Cobb pitched off the Tropicana Field mound for the first time since being struck on the head by a line drive on June 15. Cobb said he hopes to pitch in another game within a couple of weeks of the All-Star break . . . Mike Piazza will be inducted into the Mets Hall of Fame during Fan Appreciation Day at Citi Field on Sept. 29 . . . Pirates pitcher Mark Melancon, Giants closer Sergio Romo, Cardinals closer Edward Mujica, and Braves catcher Brian McCann were chosen by NL manager Bruce Bochy to replace Nationals pitcher Jordan Zimmermann, Atlanta first baseman Freddie Freeman, Cardinals ace Adam Wainwright, and Pirates pitcher Jeff Locke on the All-Star team. AL manager Jim Leyland chose Orioles pitcher Chris Tillman, Royals closer Greg Holland, and A’s closer Grant Balfour to replace Tigers ace Justin Verlander, Seattle’s Hisashi Iwakuma, and Oakland’s Bartolo Colon, who all started Sunday.


World Peace willing to play for Knicks


According to an report, Metta World Peace would play for the Knicks. World Peace cleared waivers Sunday afternoon and can sign with any team. According to a source, World Peace would also consider playing for the Clippers and China’s Shanghai Sharks. World Peace was amnestied by the Lakers Thursday and said at the time that he would prefer teams not claim him so he could play in China or potentially in the Arena Football League . . . Tina Charles had 20 points to help the Sun beat the San Antonio Silver Stars, 86-84, in Uncasville, Conn. . . . A multimillion-dollar campaign to improve the academic performances of Boston’s school-aged athletes has expanded, with the appointment of Michael Crotty Jr., a former player development director for the Celtics, as operations manager of the Boston Neighborhood Basketball League.


Camilo’s strikes propel Vancouver

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Camilo scored twice in five minutes to lead the Vancouver Whitecaps to a 3-1 win over the visiting Chicago Fire. Sanvezzo, who leads MLS with 12 goals, scored in the 66th and 71st minute for Vancouver. Brad Knighton made four saves and added an assist on Sanvezzo’s first goal . . . The Boston Lobsters topped the visiting Philadelphia Freedom, 22-19, in overtime in a World Team Tennis match . . . Fabio Fognini beat Philipp Kohlschreiber, 5-7, 6-4, 6-4 in the final of the Mercedes Cup in Stuttgart, Germany, for his first career title . . . Carlos Berlocq topped Fernando Verdasco to win the clay-court Swedish Open in Bastad, 7-5, 6-1, for his first ATP Tour title . . . Roberta Vinci beat fellow Italian Sara Errani, 6-3, 3-6, 6-3, to win the Italiacom Open in Palermo, Sicily . . . Simona Halep won her third WTA tournament of the year by defeating Yvonne Meusburger, 6-3, 6-7 (7-9), 6-1, in the final of the Hungarian Grand Prix in Budapest . . . Despite a home run from Lauren Gibson, the US fell to Japan, 6-3, in the gold medal game of the World Cup of Softball in Oklahoma City . . . Police say at least 18 people have been killed in a stadium stampede after spectators rioted to protest a local boxer’s loss in a championship match in eastern Indonesia . . . A motorcycle racer trying to top 300 m.p.h. died Sunday after losing control and crashing in Limestone, Maine. Bill Warner, 44, of Wimauma, Fla., was clocked at 285 m.p.h. before he lost control, said Tim Kelly, race director of the Loring Timing Association, which hosted the event at Loring Air Force Base. Warner was conscious and talking after the crash just before 10 a.m., but died about an hour and 15 minutes later at a hospital in Caribou.