The Diamondbacks have released starting pitcher Lucas Harrell, according to the PCL transactions page. Arizona acquired Harrell from the Astros for a PTBNL in April, and he’s spent most of the season with Triple-A Reno, posting a 5.15 ERA with 5.7 K/9 and 6.5 BB/9 in 106 2/3 innings.
Harrell was an Astros rotation staple as they struggled through the 2012 and 2013 seasons, and once seemed to have a fair amount of trade value. (The Astros reportedly asked the Nationals for top prospect Lucas Giolito for him in 2013.) Harrell pitched well in 193 2/3 innings in 2012, posting a 3.76 ERA with 6.5 K/9, 3.6 BB/9 and plenty of ground balls. He went way downhill in 2013, however, leading the American League in walks. The righty made three starts for the Astros this April before being designated for assignment.