Boykin was released last month by the Carolina Panthers after signing a one-year deal with the defending NFC champs in March. He was traded by the Philadelphia Eagles to the Pittsburgh Steelers last season and saw limited playing time. He started one game and had one interception to go along with 21 tackles, one sack, one pressure, one forded fumble and five pass deflections.
Boykin spent his first three seasons (2012-14) with the Eagles and had seven interceptions, six of which came in 2013.
The Panthers signed him to a deal worth $840,000 and released him after they decided to rescind the franchise tag to Josh Norman. There have been reports from Pittsburgh that he has a hip problem.
Boykin has played mostly the slot in his career, and the Cowboys have Orlando Scandrick returning from a torn anterior cruciate and medial collateral ligaments in his knee. Scandrick will be fully cleared for training camp. The Cowboys also re-signed Morris Claiborne, and Brandon Carr accepted a pay cut to remain with the club.
The Cowboys worked out seven players on Tuesday, including British Olympian Lawrence Okoye, a defensive lineman who has spent time with the San Francisco 49ers, Arizona cardinals and New York Jets since 2013. Okoye is the British discus record holder. He finished 12th in the 2012 Summer Olympics.
The Cowboys also looked at defensive backs Dax Swanson and Isaiah Frey, offensive tackles Cameron Bradfield and Bryan Witzmann, linebacker Brandon Hepburn, and tight end Nate Askew. Askew played linebacker and wide receiver at Texas A&M. He spent time last season on the Panthers' practice squad.