The New England Patriots signed first-year defensive lineman Casey Walker to the practice squad Saturday.

Walker, 24, was released from the 53-man roster on Nov. 20. He was signed by the Patriots from the Carolina practice squad on Sept. 27. He originally entered the NFL as a rookie free agent with Carolina out of Oklahoma on April 30, 2013. The 6-foot-1, 340-pounder spent part of the 2013 season on the Carolina practice squad and went to training camp with the Panthers this summer.

Walker played in five games with one start for the Patriots and accumulated 10 total tackles and one sack.

The Patriots also released linebacker Ja’Gared Davis from the practice squad.

Davis, 24, began the season on the practice squad before being signed to the 53-man roster on Oct. 4. He played in three games before being released on Oct. 22 and signed back to the practice squad. The 6-foot, 238-pounder, spent the majority of his rookie season in 2013 on the Patriots’ practice squad, but did see action in one regular-season game and both postseason games after joining the 53-man roster. He was originally signed by Houston as a rookie free agent out of Southern Methodist on May 10, 2013.