Daniel Tuttle suspended 50 games

NEW YORK -- A minor league pitcher in the Cincinnati Reds organization has been suspended 50 games after a second violation of baseball's drug policy.

Right-hander Daniel Tuttle's suspension is effective immediately, the office of commissioner Bud Selig announced Tuesday. It is unknown what substance caused the violation of the Minor League Drug Prevention and Treatment Program, but MLB said it was a "drug of abuse."

Tuttle made five appearances, including three starts, for the Reds in the rookie Arizona League, going 3-1 with a 3.91 ERA. He also has started 11 games this season for Dayton in the Class A Midwest League, compiling a 4-3 record with a 4.87 ERA.