The Miami Dolphins signed cornerback Jack Jones Saturday morning, adding talent and depth to the position after cornerback Artie Burns' season ending injury.

During the same practice, new Dolphins cornerback and former Steelers first-round pick Artie Burns left practice on crutches, and per ESPN's Adam Schefter, an MRI confirmed Burns sustained a torn ACL.

The Dolphins re-signed cornerback Cornell Armstrong, who last played for them in 2018. Armstrong has appeared in 40 career NFL games, having also played for Houston and Atlanta. He has 43 tackles and seven passes defensed. Last season, he was on Las Vegas’ practice squad.