General manager Dana Brown said Tuesday that McCullers (forearm) has not yet resumed throwing, Brian McTaggart of MLB.com reports.
A setback in McCullers' recovery has prevented him from throwing since July 9, and although he is not dealing with any structural damage, his progress remains slow. Brown noted that the right-hander may still be able to pitch for the Astros in September, but he won't have a clear timetable until he is cleared to resume his throwing program.