ARLINGTON, Texas -- Four games into his NFL career, Dallas Cowboys right guard Zack Martin doesn’t know anything different than seeing DeMarco Murray run for at least 100 yards in a game. What’s it like to block for Murray, who is riding a hot streak only six running backs have had in NFL history? “It’s a blast,” Martin said. “You look at the tape and we’ll probably see it again [today], but he sets our blocks up so well.
