Offensive lineman Michal Menet earned a spot on the Rimington Trophy preseason watchlist, while star tight end Pat Freiermuth was named to the John Mackey Award preseason watch list.
The Penn State standout joins fellow Big Ten East representatives Ohio State defensive end Chase Young, Ohio State running back J.K. Dobbins, and Michigan State stars Joe Bachie and Kenny Willekes.
Killens previously officiated in the American Athletic Conference and the former Alliance of American Football.
Sports Illustrated highlighted Gross-Matos' record-breaking sophomore season in which he became the 11th player in Penn State history to record 20 or more tackles for a loss in a single season.
The former Penn State superstar beat out Milwaukee Brewers slugger Christian Yelich, Atlanta Hawks star Trae Young, and reigning US Open champ Naomi Osaka for the award.
Penn State strengthened its 2020 recruiting class once again on Saturday when it landed a commitment from four-star defensive tackle Fatorma Mulbah.