I leave that horse in the barn. Ankle sprains can stick around especially the high variety. Who's JSU that you would want to risk your bread and butter for SEC play? I dress him out, but it would take a tsunami like catastrophe for LF to ever see a hand off.
Ok so he is hurt. Depends on the severity. If he feels fine I play him a half and if the game is iced I play guice the 2nd half.
#5 should be plenty running game to gash the JSU defense. No need to risk the season for Fournette, his Heisman hopes are already gone. If Miles were to play him tonight, and he ends up being lost for a good portion of the remaining season, the talking heads who said Fournette should sit for the whole season will be licking their chops to say I told you so.