Failed marijuana tests nearly ended Jon Singleton’s career. Now the Astros slugger is asking what if

 Failed marijuana tests nearly ended Jon Singleton’s career. Now the Astros slugger is asking what if

Slugger Jon Singleton is back in the majors for the first time since 2015 after his career was derailed by several failed tests for marijuana

HOUSTON — In 2018, Jon Singleton requested his release from the Houston Astros after being suspended 100 games following a third failed marijuana test while in the minors, choosing to walk away from…