The Dallas Cowboys will be down a starter on the offensive line for at least a couple of months, according to ESPN’s Adam Schefter. The NFL insider reports that Cowboys guard Rob Jones has suffered a broken neck and will miss 2-to-3 months. Jones had been working with the starting offensive line during training camp, per Schefter.

Robert Jones, who signed with the Cowboys as a free agent this offseason, broke a bone in his neck during practice on Sunday, according to ESPN, and is expected to miss 2-3 months.

The offensive line depth for the Dallas Cowboys has taken a hit with Rob Jones set to miss multiple months due to a broken bone in his neck.