Yahoo Sports NFL on Jake Tonges

From the article

49ers tight end Jake Tonges left Thursday night's win over the Rams with a knee injury; coach Kyle Shanahan offered an ominous update, saying 'It wasn't good. It's not an ACL, it's the MCL, I believe, but there's some issues with it that we've got to see how it is.' Shanahan's tone suggested the medical staff thinks Tonges will miss significant time, with the full extent of the injury unknown until the team returns from Australia for a full battery of tests.