Two late-game defensive breakdowns derailed the Nittany Lions' top-10 upset bid.
With four players on the list, Penn State hails more instant impact true freshmen than any other program.
The Kansas native is the third cornerback to pledge to the Nittany Lions this cycle.
Despite holding a two-goal fourth quarter lead, the Nittany Lions couldn't seal the deal against No. 2 Northwestern.
Nickal will reportedly take on Jamie Pickett at UFC 282 in Las Vegas.
"Failure is the result of your process," Still said. "It's not a measure of who you are as a person."