Allen was waived by the Commanders on Thursday.
The Commanders are parting ways with Allen after the rookie sixth-round pick rushed 12 times for 41 yards across the first four regular-season games of his NFL career. Washington will roll with Jacory Croskey-Merritt (groin), Rachaad White (shoulder) and the recently signed Austin Ekeler in the backfield, while the rest of the league will have 24 hours to put in a claim on Allen before he becomes a free agent.