The Eagles have promoted rookie running back Byron Marshall from the practice squad to the 53-man roster. 

Marshall will take Wendell Smallwood's place on the roster. Smallwood on Monday was placed on Injured Reserve with a knee injury. 

Marshall, 22, has spent all season on the Eagles' practice squad after joining the team as an undrafted free agent from Oregon. In the preseason, Marshall had 34 carries for 86 yards, but also caught eight passes for 60 yards. 

After Smallwood landing on IR and with Darren Sproles in the NFL's concussion protocol, the Eagles were left with Ryan Mathews and Kenjon Barner as their only healthy backs. Marshall is now added to that group as the team will monitor Sproles throughout the week. 

Marshall (5-9, 201) was a running back and receiver at Oregon, where he picked up 3,170 scrimmage yards (1,877 rushing, 1,293 receiving) in 42 career games. Marshall's college career ended early when he suffered an ankle injury last September. 

The Eagles' roster is now full at 53.