According to Boston.com:

Injection for Francona

Francona revealed that upon his return to Boston, he will go to Massachusetts General Hospital for an injection in his neck today. Francona said he has had little feeling in his left arm for the last couple of months, and that last week he dropped his pen because he was unable to grip it properly. The condition, Francona said, is a consequence of an old disk problem that required surgery . . . The Sox promoted hot pitching prospect Michael Bowden to Triple A Pawtucket . . . There was speculation that with Julio Lugo out (torn quadriceps), the Sox would have interest in Giants shortstop Omar Vizquel, but a Sox official shot that down, saying the team is content with a combination of rookie Jed Lowrie and veteran Alex Cora . . . The Sox will hold a workout tomorrow night in Anaheim for players who did not participate in the All-Star Game, though Francona said he expected many of the Stars would show up.