Rodriguez (knee) had his scheduled rehabilitation start Friday for Triple-A Pawtucket rained out. He'll pitch in one of Saturday's doubleheader games.
Minor league doubleheaders are shortened to seven innings on both ends, but the Red Sox feel that's enough time to get Rodriguez up to 100 pitches. More than the pitch count, the Red Sox will be looking to see some additional velocity out of the left-hander's fastball.