Dallas Cowboys guard Rob Jones broke a bone in his neck during the first padded practice of training camp and is expected to miss two to three months, the four-year veteran told the team's website Monday.

He joined the Cowboys on a one-year, $3.75 million deal this offseason after the team lost longtime guard Zack Martin to retirement.

Robert Jones broke a bone in his neck during practice on Sunday, and is expected to miss two to three months, per ESPN.  The Middle Tennessee product signed a one-year deal with Dallas in free agency after spending his first four NFL seasons with the Miami Dolphins.