Dallas Cowboys pull off their 4th trade in as many days. They acquire defensive end Caesar Rayford from Indianapolis for a conditional 2015 draft pick. Rayford signed with the Colts as an undrafted rookie free agent out of Washington. He had 5 sacks and 11 tackles in the preseason. Cowboys preparing for the possibility that defensive end Anthony Spencer cannot play in Sunday's opener with the New York Giants. Spencer still recovering from knee surgery in July.