A suspect who injured a Salinas store clerk during an armed robbery early this morning is being sought. The incident occurred at the 7-11 store on the 1300 block of North Main Street just before 3, when the man entered the store and brandished a handgun demanding money from the clerk. Police say the employee opened the register and was knocked unconscious by the suspect who struck the clerk on the side of the head with the gun. The man fled on foot with an undisclosed amount of cash.