The Ravens signed former Washington Redskins wide receiver Aldrick Robinson to the practice squad and cut former Maryland and Poly wide receiver LaQuan Williams.
The Ravens also signed tight end Allen Reisner to the practice squad.
Nickel back Danny Gorrer was placed on injured reserve with torn medial collateral and posterior cruciate ligaments after the signing of veteran cornerback Antoine Cason.
Robinson was a 2011 sixth-round draft pick by the Redskins from Southern Methodist. He has caught 30 passes for 608 yards and five touchdowns, including one pass for six yards in five games this season.
At SMU, Robinson ran the 100 meters in 10.49 seconds and 200 meters in 21.48 seconds. He was an honorable-mention All-Conference USA selection. At the NFL scouting combine, he ran the 40-yard dash in 4.35 seconds.
Williams was signed to the practice squad last week.