I'd have to ask my Physical Therapist wife but based off of some of the things she talks about when it comes to the knee it really depends on which ligament you tear. I asked her about the LCL and she didn't think it was a big deal, especially without surgery. She said he's looking at about 8 weeks. As for the not telling anybody about it, I totally feel there is more to this story but on the other hand you have to think that pro athletes bodies are sore all the time so they don't think much of it as long as that body part still works and moves. Especially is spring training when you're playing everyday after not doing so for the last 4 months. I would be genuinely interested to hear her general opinions on any injury the Brewers have -- recovery time, severity, lasting impact, etc. There was a blog I used to read, done by a physical therapist, where he'd chime in on different injuries around MLB & clarify things like typical recovery time & offering definitions of medical terminology so the lay-person can fully understand. I loved that blog & can't remember its name for the life of me, but I do recall that he shut the blog down after a couple years or so. I love getting a physician's or professional's p.o.v. on injuries & not just going off of beat writers & clubs' messaging. EDIT: I found the old blog! The Disabled List. Man that was a great read. She usually provides some interesting insight anytime a Brewer gets hurt because I ask her about it. She pretty much confirmed that Wil is taking the best course of action right now. Whether he opted for surgery right away or waited to try rehab and then surgery he was going to miss all of or almost all of 2016.