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10/02/09 6:33 PM EST

Nats, Cubs farmhands penalized for PEDs

King, Contreras given 50-game suspensions

Two Minor League players, third baseman Stephen King of the Nationals organization and catcher Wilson Contreras from the Cubs farm system, received 50-game suspensions Friday after testing positive for performance-enhancing substances in violation of the Minor League Drug Prevention and Treatment Program.

Drug Policy in Baseball

King tested positive for Ritalinic Acid, and Contreras tested positive for metabolites of Nandrolone. Each will serve their suspensions at the start of next season.

King, 21, hit a combined .226 with seven home runs and 35 RBIs in 94 games for Class A Hagerstown and Class A Potomac this season. Contreras, 17, his .205 with a homer and six RBIs in 29 games for the Cubs' Dominican Summer League team.

Alden Gonzalez is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.