The defensive line held the Illini to just 34 yards on the ground.
"We got challenged by [James Franklin] and we took that to heart."
Nick Singleton and Kaytron Allen were responsible for two of Penn State's three touchdowns.
Freshman Anthony Speca is expected to play if DeLuca was ruled out, Franklin said after practice Wednesday.
The Nittany Lions also appeared on Big Noon Kickoff against West Virginia.
Penn State begins Big Ten play under the lights on Saturday.
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