The Cowboys released guard Nate Livings from the reserved/injured list on Thursday.
Livings, who started all 16 games last year, missed the final month of training camp with a right knee injury that required surgery.
The seven-year veteran had signed a five-year, $18.7 million free-agent deal with Dallas prior to last season.
The Cowboys also released defensive tackle Travis Chappelear from the reserved/injured list Thursday.
Undisclosed injury settlements were agreed to with both players.