The 6-foot-5, 318-pound guard was selected at 91 overall by the Cowboys out of Florida in 2015. Over his three seasons in Dallas, Green appeared in 18 contests, making six starts.
He was waived in the final roster cuts and was most recently on the New Orleans Saints’ practice squad before being waived on November 21.
Green has played both tackle and guard both at Florida and while with the Cowboys.
The corresponding roster move was the placement of defensive end Jacquies Smith on injured reserve (Achilles).