Northwestern running back Justin Jackson has a "lower-body injury," head coach Pat Fitzgerald said after Saturday's game.
Jackson, the Wildcats' star running back who scored three touchdowns in the team's season-opening loss to Western Michigan, rushed just 11 times for 39 yards as the Cats fell to 0-2 with Saturday's 9-7 loss to Illinois State.
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Jackson didn't play much in the latter stages of Saturday's game, and his absence was glaring for a Northwestern offense that mustered just 277 yards of offense.