Reliever Mark Hamburger Must Serve 50-Game Suspension

Free agent righthander Mark Hamburger, released by the Astros on Feb. 13, must serve a 50-game suspension if he latches on with a new organization. He failed two tests for recreational drugs as defined by the minor league drug prevention and treatment program.

Signed as a nondrafted free agent by the Twins in 2007, Hamburger reached the big leagues briefly in 2011, making five appearances for Texas. The 26-year-old reliever pitched at the Triple-A level for the Rangers, Padres and Astros last season, notching 7.2 strikeouts and 4.1 walks per nine innings for three Pacific Coast League clubs.