Frankly, I'm a little concerned that he'll ever be able to throw the slider effectively after this injury. Isn't this the finger that is most active in gripping the slider? As to timeline, like others, I'm no expert, but just as an uneducated opinion, I'd say he's going to be behind if he's not already throwing off a mound. He hasn't pitched in almost 6 months. I'd think he'd need roughly a month of game action to be ready to start a mlb game. So he'd need to go from not being able to grip a ball, to pitching in a rehab start in 2 weeks? I'm not convinced that's realistic.