The Dallas Cowboys promoted safety Jakar Hamilton from the practice squad to the active roster.
They cut offensive lineman David Arkin, a former fourth-round draft pick.
The Cowboys needed Hamilton for depth with starter J.J. Wilcox out Sunday with a knee injury. Jeff Heath is set to start in his place.
Hamilton spent the first seven weeks of the season on the practice squad.
He went undrafted out of South Carolina State.
Follow me on Twitter: @RavensInsider
Aaron Wilson covers the Ravens for The Baltimore Sun.
DEC 12 Joel Corry
Should San Francisco decide to part ways with its quarterback, here’s how it would work.
DEC 10 Erik Oehler
Sometimes they aren't out to get you.
DEC 09 Jeff Fedotin
Anderson, Sanders, revamped O-line complement Peyton.