Adon, 26, was designated for assignment last week, and unsurprisingly the right-hander went unclaimed after going 3-16 with a 6.66 ERA in 26 career starts. The right-hander will be a depth piece if he doesn’t elect free agency.

After eight years in the Nationals system, Adon might be on the move. Our guess, though, is that he’ll clear waivers. The 26-year-old is just 3-16 with a 6.66 ERA in 26 starts and nine relief appearances at the major league level, and he hasn’t been very successful in Triple-A of late, either. He’s also out of options, making him less attractive to teams looking for pitchers they can move between the minors and majors easily.

Adon was already out for the season. This was merely a housekeeping move to create space on the 40-man roster for Friday’s starter Trevor Williams. Zach Brzykcy was optioned to the minors to make room on the active roster.

The nature and timing of the injury will all but end Adon’s season. The 26-year-old has transitioned to the bullpen this season, but it hasn’t done much for his success at the MLB level. The Nationals recalled Orlando Ribalta from Triple-A Rochester to take Adon’s place in the bullpen.