Chafin (finger) was activated from the 10-day injured list Saturday.
Chafin has been out since Aug. 17 with a sprained left index finger and his next appearance will be his first in a Cubs uniform, as he was traded from Arizona on Aug. 31. The lefty takes the roster spot of Rowan Wick (oblique), who was placed on the 10-day IL on Saturday. Chafin figures to work in a middle-relief role.