IRVING, Texas -- Hamstring injuries were a common theme for the Cowboys in 2013. At least 12 players had some sort of hamstring problem. During offseason workouts this spring and summer, some position players were wearing tights to keep their legs warm and in some cases using heat spray on their legs. At one practice last week, wide receiver Dez Bryant had both legs sprayed. A team official said some players need extra maintenance. "We really haven't been talking about it amongst each other, about, oh, how are we going to tape our hamstrings," Bryant said.