The Dallas Cowboys added to their wide receiver depth Thursday by signing LaRon Byrd one week before the NFL draft. Byrd (6-4, 220) played college football at Miami and was originally signed by the Arizona Cardinals as an undrafted rookie free agent in 2012. In four games with Arizona in 2012, Byrd had one catch for eight yards. He also made two special teams tackles with Arizona during his two seasons. Byrd, 24, missed all of last season after suffering a concussion during the preseason, leading to Arizona putting him on the reserve/injured list. Byrd was released by Arizona on April 4.