Kennedy (hamstring) will throw a bullpen session in the next two-to-three days, Corey Brock of MLB.com reports. Kennedy was placed on the 15-day DL on Friday after a hamstring injury limited his 2015 debut to just 2.1 innings. It's a positive sign that Kennedy will start throwing bullpen sessions roughly one week after suffering the injury, but manager Bud Black indicated that he'll need a minor league rehab stint before returning to the Padres' rotation.