Ryan Ramczyk

His knee is a degenerative issue, so he's only going to get worse, though I think we really need to get rid of Marrone. That alone might help turn the OL around, but if not, we need 4 new OL with Penning being essentially a rookie gets a slight pass from me.
I was wondering about this. There were several comments by folks who cover the team during the offseason about Ramczyk's career potentially being compromised by injuries. I've never known exactly what they are talking about. He's only in his seventh year and still on the sunny side of 30. Tackles routinely play well into their mid-30s. What is up with him?