Washington Nationals right-hander Shawn Kelley is being placed on the 10-day disabled list Tuesday, one day after injuring his pitching arm against the San Francisco Giants. Kelley departed Monday's contest in the sixth inning with ulnar collateral ligament nerve irritation in his right elbow. "It's probably been the best I've felt in years," Kelley, who has undergone two Tommy John operations, told reporters after the contest.