You know what, after watching the video of it, it seems like they are cheering he got up and not that he was down. You hear them react to the first down they got, then it got quiet when Cassel was down, then he was getting up and walking off and they were cheering.
I dont get it...
My sliding mock: (mid round pick)
1-Cyril Richardson G Baylor / CJ Mosely LB Bama
2-Shane Skov LB Stanford / Travis Swanson C Ark
3-Louchiez Purifoy CB Florida / Brandon Coleman WR Rutgers
4-Bryan Stork C Florida St / Stanley Jean-Baptiste CB Nebraska
5-DeVonte Parker WR Louisville / Chris Watt G ND
6-Kareem Martin DE UNC / Jerome Smith RB Syracuse