The San Francisco 49ers signed defensive tackle Tank Carradine and tight end Vance McDonald to four-year contracts on Thursday.
The Baltimore Ravens signed linebacker Arthur Brown to a four-year contract on Thursday.
The Arizona Cardinals signed defensive back Tyrann Mathieu to a four-year contract on Thursday.
Washington Redskins quarterback Robert Griffin III is still recovering from knee surgery and said Thursday his goal is to be ready for training camp in July.
The New York Giants re-signed wide receiver Ramses Barden on Thursday.
The Tampa Bay Buccaneers signed their second- round pick, cornerback Johnthan Banks to a four-year contract on Thursday.
The Pittsburgh Steelers have signed third- round pick, wide receiver Markus Wheaton to a four-year deal. Financial terms were not disclosed.
The Cincinnati Bengals agreed to terms with running back and second-round draft choice Giovani Bernard on Thursday.
New York Giants fullback Henry Hynoski will undergo surgery on Friday to repair an injured medial collateral ligament and a chip fracture to the lateral plateau in his left knee.
The Carolina Panthers have signed defensive tackle Star Lotulelei, the club's first-round pick in the 2013 NFL Draft.