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Bennett Jackson: B+
Although he failed to get down immediately after his game-clinching interception, his second of two on the day, Jackson showed he can be a valid No. 1 cornerback on Saturday. The Boilermakers lack a game-breaking receiver, however, so there is still plenty to prove.
KeiVarae Russell: B-
Russell certainly had some true freshman moments, but played well on a key red-zone stand that held Purdue to a field goal late in the third quarter. He also combined with Louis Nix for a key sack in the fourth quarter.
Jamoris Slaughter: Incomplete
Like Kapron Lewis-Moore, Slaughter's day ended early with a shoulder injury. He had three tackles in his short day of work. His absence was notable, but wasn't overly costly.
Zeke Motta: B-
Motta isn't a ball hawk at the back end of the defense, but he did display his tackling prowess on Saturday with nine, four coming on run plays. Motta was late with help on Purdue's game-tying touchdown but helped the Irish avoid allowing any long pass completions.