Tuesday's sports transactions

BASEBALL

Major League Baseball

MLB—Suspended St. Louis INF-OF Alan Ahmady (Batavia NY-Penn) for 50 games after testing positive for an amphetamine.

American League

CHICAGO WHITE SOX—Exercised the 2010 club options on the contracts of RHP Freddy Garcia and LHP Matt Thornton.

KANSAS CITY ROYALS—Announced first base coach Rusty Kuntz has been reassigned as a special assistant to the general manager/field instructor. Named Eddie Rodriguez first base coach. Announced the contract of bullpen coach John Mizerock will not be renewed.

National League

PHILADELPHIA PHILLIES—Named Dave Hollins special assignment scout.

American Association

GRAND PRAIRIE AIRHOGS—Exercised the 2010 option on RHP Steve Andrade.

BASKETBALL

National Basketball Association

CHARLOTTE BOBCATS—Exercised the contract option for the 2010-11 season for G D.J. Augustin.

FOOTBALL

National Football League

BALTIMORE RAVENS—Placed LB Brendon Ayanbadejo on injured reserve. Signed LB Prescott Burgess.

CAROLINA PANTHERS—Signed DT Ra'Shon Harris to the practice squad. Released DE Maurice Evans from the practice squad.

DALLAS COWBOYS—Signed CB Cletis Gordon.

HOUSTON TEXANS—Placed LB Khary Campbell on injured reserve. Signed DE Tim Jamison from the practice squad. Released TE Clark Harris from the practice squad.

SEATTLE SEAHAWKS—Re-signed FB Justin Griffith. Released OT Kyle Williams.

WASHINGTON REDSKINS—Signed P Glenn Pakulak to the practice squad. Released WR Trent Shelton from the practice squad.

HOCKEY

National Hockey League

ATLANTA THRASHERS—Assigned LW Josh Gratton to Chicago (AHL).