Via George King, Joba Chamberlain threw off a full mound today for the first time since having Tommy John surgery last June. He threw just 15 pitches (all fastballs), but it’s a significant step. He’ll do the same thing on Friday. “We will see how Friday goes and how my arm recovers because there [are] different pressures when you throw off a full mound,” said Joba. “I won’t throw breaking balls at all this week. After Friday we will figure out a plan.”
If all goes continues to go well, Joba will be able to face hitters in batting practice and simulated games within four-to-six weeks. A minor league rehab assignment follows a few weeks of that, so think sometime in May.