The Athletics defeat the Mariners, 14 – 5. Seattle P Damaso Marte makes his major league debut in the 8th inning, and surrenders a home run to DH John Jaha on his first big league pitch.
On June 30, 1999 The Athletics defeat the Mariners, 14 – 5. Seattle P Damaso Marte makes his major league debut in the 8th inning, and surrenders a home run to DH John Jaha on his first big league pitch.
Source
Baseball Reference June 30