it's his achilles and he's now ruptured it twice. It's worse than an ACL, way worse.
his heel problem is without a single doubt in my mind related to the achilles. when the body has to recover from an injury that bad it tends to get out of whack and put pressure on other areas that before were fine. he will continue to have a series of injuries coming back, even if his achilles holds up.
that scouting video of him at 3B was widely viewed when he was drafted and was discussed largely at that time. the Sox were obviously drafting for need which was stupid. Burger was a reach. A reach to say at 3B and a reach at #7.
as I said the day he re-tore I doubt he ever plays a single MLB game. In fact I doubt he even gets above AA. I bet in 5 years he's out of baseball.
Jake's twitter is the opposite of Kopech's. Not much about working hard or inspirational quotes or focusing on baseball. That's fine, but as a fan I wonder if a guy that got a 3.5 million dollar bonus and has endured two years worth of rehab has lost the fire.