Ryan Smith, starting WR, out for a couple weeks at least with a recurring hamstring injury(missed the Colorado State game)
Colten Heagle, Eagle destroyer, out for the year with a knee injury.
Garrett Bruhn, starting TE and only Bison player to have a TD reception going into the season - knee injury, might be out for the season
Marcus Williams - All-American corner is out for a couple weeks (at least) with knee surgery.

Lots of other injuries too. Bison are pretty banged up.