What is worse than a serious spring practice injury? A serious spring practice injury to your defense's best player.
According to the UM Football twitter account, Jake Ryan tore his ACL
Jake Ryan is out indefinitely with a torn ACL suffered in Tuesday's practice. More: mgob.lu/XpSKKn— Michigan Football (@umichfootball) March 20, 2013
So yeah, this is bad. Like, really about the worst thing that could have happened. The timetable on recovery from these injuries isn't favorable to Ryan being able to play this season, and it could limit him until spring practice next year (or longer).
It is way too early to say what this does to Michigan's defense next year outside of "leaves it without its best player". One thing Michigan is going to have to figure out is a way to seriously up its pass rush, as Ryan was one of the few players last year capable of getting to the quarterback.
I'm going to go drink now.