Chafin will wear a splint on his left index finger for the next week, Jesse Sanchez of MLB.com reports.
The plan calls for the Diamondbacks to remove the splint at the end of next week and get a better sense of how the finger is doing and what the next steps will be. The left-handed Chafin has allowed six runs on nine hits and four walks while striking out 10 over 6.2 innings.