Yarbrough will pitch behind opener David Robertson in Friday's series opener against the Marlins, Neil Solondz of the Rays Radio Network reports.
Yarbrough has struggled in his last three appearances with a 15.68 ERA and 2.52 WHIP in 10.1 innings during that time, and he'll be utilized as a primary pitcher against Miami. The southpaw was able to get out of trouble early in his last start, so he'll attempt to replicate his early success behind an opener Friday.