Rutledge, who exited Tuesday's Grapefruit League game early, has been diagnosed with a left hamstring strain, Jason Mastrodonato of the Boston Herald reports.
EDGE Analysis
It's a tough break for Rutledge, who was slated to open the season as a left-handed utility option for the Red Sox off the bench. As of now, no timetable has been set for his return. Fellow infielder Marco Hernandez is a good candidate to fill Rutledge's role in the meantime.