Allen was selected with the No. 148 overall pick in the 2018 NFL Draft and will stay in Pennsylvania.
He'll join a host of wide receivers in Denver on a team that went 5-11 last season.
The four year letterman will join the Washington Redskins following being drafted in the fourth round.
No other Giants players wore the number entering the NFL Draft, so it seemed inevitable that he'd keep the number he made his own in college.
The previous best-seller was Johnny Manziel in 2014.
Mike Gesicki is heading to Miami to catch passes within a receiving corps in need of some help.