Glasper out for the season

Was browsing the transactions on and noticed this as the "other" move we made today:

HAM TFR TO INJURED IMP Ryan GLASPER (DB) Boston College - to Saturday November 10^^

Looked promising at the start of the season, but turned out to be a bit too slow in coverage against 5- and 6-receiver sets.
I don't remember any injury though. Hurt in practice? Or is he "injured"?