The Astros have released former top prospect Jon Singleton, the team announced Monday. The 26-year-old first baseman was drafted by the Phillies in the eighth round of the 2009 Draft out of Millikan High School in Long Beach, Calif. He was traded to the Astros in July 2011, and signed a five-year, $10 million extension in '14, announced the day before his MLB debut.
Prior to signing the extension, Singleton had been suspended twice for failed marijuana tests. In January of this year, he was suspended 100 games for a third positive test for a drug of abuse in violation of the Minor League Drug Prevention and Treatment Program
Singleton was the No. 3 prospect in the Astros' organization behind Mark Appel and Carlos Correa when he made his big league debut on June 3, 2014, according to MLB Pipeline. In 95 games that season, he slashed .168/.285/.335 with 13 home runs. He appeared in 19 games for Houston in '15, slashing .191/.328/.298 with one home run.
Singleton hit .205/.376/.397 with 18 homers in 117 games for Double-A Corpus Christi in 2017.