JULY 15: The Rangers have requested unconditional release waivers for Detwiler after he rejected an outright assignment, tweets Stefan Stevenson of the Fort Worth Star-Telegram.

As a player with more than five years of big league service, Detwiler has earned the right to reject his minor league assignment without having to forfeit the remaining $1.55MM of his 2015 salary. The Rangers will remain on the hook for that amount, less the pro-rated portion of the league minimum for any time he spends on another club’s active roster.

If there’s a silver lining on Detwiler’s rough season, it’s that he’s still held left-handed hitters in check quite well. Same-handed batters have posted a meager .220/.283/.317 batting line in 46 plate appearances versus Detwiler this season. Over the course of his career, he’s held them to a similarly weak .232/.305/.301 line. Perhaps, then, a club in need of left-handed relief help will show interest in Detwiler once he officially becomes a free agent.

JULY 11: The Rangers have announced that they’ve designated lefty Ross Detwiler for assignment. The move clears space on the Rangers’ active roster for righty Roman Mendez, who has been promoted from Triple-A Round Rock.

The Rangers acquired Detwiler from the Nationals for two prospects in December. He got off to a poor start in Texas, with a 10.95 ERA through his first three outings, and never really righted the ship. He still had a 6.95 ERA in mid-May when he went on the DL with shoulder trouble, and he continued to struggle after returning a few weeks later. Overall, Detwiler posted a 7.12 ERA with 5.9 K/9, 4.2 BB/9 and a career-low 36.4% ground-ball rate in 43 innings split between the rotation and the bullpen. His $3.45MM salary will likely prevent him from being claimed.

Prior to 2015, Detwiler enjoyed six modestly successful years with the Nationals, who made him the No. 6 overall pick in the draft in 2007. For his career, he has a 4.10 ERA, 5.5 K/9 and 3.0 BB/9 in 514 innings.