The Diamondbacks made moves to give two lefties in the Reno Aces bullpen a tryout period, selecting the contracts of LHPs Steve Hathaway and Adam Loewen. With a full 40-man roster, that meant cutting two players. The two players on the short end of the stick are utility man Mike Freeman and former starter Josh Collmenter. The reason for adding those two is the Diamondbacks have gotten virtually no production from the left-handed relievers they've utilized this year. Andrew Chafin has been injured or ineffective, Zac Curtis was clearly rushed to the majors and wasn't ready for the job, and Keith Hessler pitched his way off the 40-man roster and into San Diego's.
Hathaway was drafted by the Diamondbacks in the 14th round of the 2013 MLB Draft out of Franklin Pierce University and has ascended up the ladder under the radar. His minor league career he's 7-7 with a 3.07 ERA and a 106/40 strikeout to walk ratio in 105 innings. This season he's pitched to a 2.48 ERA in 37 appearances between AA Mobile and AAA Reno. In Reno he sported a 3.28 ERA. Adam Loewen is a former starting pitcher prospect who washed out with the Orioles before dabbling as a position player with the Reno Aces at one point. After returning to the mound, he appeared briefly last year in Philadelphia as a reliever. In 34 appearances, he's pitched to a 3.52 ERA in Reno with a 41/28 strikeout to walk ratio in 38 1/3 innings.
For Josh Collmenter, it is likely the end of the road for him in Arizona. He left behind a lot of great memories, including a money start against the Dodgers that saved the 2011 season and the 7-inning masterpiece against the Milwaukee Brewers with the team facing elimination in Game 3 of the NLDS. Collmenter had proven to be a reliable arm for the team his first 4 years in the majors, but ultimately a velocity drop into the low to mid 80s killed whatever value gained by his deceptive delivery. I hope the best for Collmenter moving forward because of what he brought to the organization after being drafted as a 15th round pick in 2007.