The Astros have released right-hander after designating him for a signment last week, as indicated on the . Hes now a free agent. Coleman, 28 next month, was acquired from the Royals in a small December swap and has spent the bulk of the season in Triple-A Sugar Land. He pitched one scorele s big league frame for Houston back on April 3 but has limped to a more problematic 6.50 earned run...