Jay Ratliff, Mackenzy Bernadeau suffer hamstring injuries

Hamstring injuries suffered during training will land Cowboys defensive tackle Jay Ratliff and right guard Mackenzy Bernadeau on the active / physically unable to perform list to begin training camp, Todd Archer of ESPN Dallas reported Sunday. Bernadeau’s injury further thins the club’s guard ranks for the time being. Left guard Nate Livings (foot) and reserve…