The Vikings signed former Dolphins TE John Nalbone to the practice squad, taking the place of CB Marcus Sherels on the unit.
Nalbone was a fifth-round pick of the Dolphins and played in two games this season. He was released when they claimed TE Mickey Shuler off the Vikings' practice squad prior to Week Three.
Sherels played locally at University of Minnesota. He was released now that CBs Cedric Griffin and Chris Cook are healthy on the active roster.