Chafin made his first rehab appearance, pitching a scoreless inning with two strikeouts, MLB.com Associate Jake Rill reports.
Chafin has really struggled this season for the Diamondbacks after a stellar 2015 campaign in Arizona. Chafin can be a useful reliever for the Diamondbacks if he can come back and prove he's healthy. Chafin could return to the Diamondbacks bullpen as soon as next week.