STATE COLLEGE, Pa. -- On the field, Nicholas Singleton and Kaytron Allen complement one another out of the Nittany Lions' backfield like a scoop of cookies-n-cream from Penn State 's Berkey Creamery.

Off the field, the star rushing duo and longtime roommates see few differences. They're both quiet, soft-spoken and football junkies.

"He's like my twin," Allen said. "We down near like the same person, just in different bodies."

In their final season together, the two seniors have an opportunity to make history -- in multiple ways.

According to ESPN Research, Singleton and Allen are the first Power 4 running back duo to each rush for 750-plus yards in three consecutive seasons since at least 1996. (Indiana's Antwaan Randle El and Levron Williams matched the feat from 1999-2001, but

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