Per Matt Gelb.

This is close to the death blow for his prospect status. He lost nearly an entire year last year to an ACL injury, and microfracture surgery will likely wipe out his entire 2012. I left Garcia out of my top 30 prospects list, largely because I needed to see a healthy, productive year from him before I was convinced that he was more than a cup of coffee guy. This obviously sets him back even more. Microfracture surgery is tough to come back from (especially since it is the same knee as the blown ACL) though he is only 25 and its not impossible. That said, he turns 26 in October and will have likely logged a total of about 300 AB at the AA level in the past 2+ years. A tough break, and I hope for the best for him, but you can probably remove him from your lists at this point.