Cardinals pitcher Joe Kelly is nearing a rehab stint in the Minor Leagues. Kelly tossed two pain-free simulated innings at Busch Stadium on Sunday. The rehab assignment should begin this week. Kelly will also run through some defensive drills before beginning his assignment. The righty hit the disabled list back in April with a left hamstring strain and was 1-and-1 with a 0.59 ERA in fifteen-and-a-third innings.