Washington Nationals relief pitcher Tanner Roark (59) during a baseball game against the Kansas City Royals at Kauffman Stadium in Kansas City, Mo., Friday, Aug. 23, 2013. (AP Photo/Orlin Wagner)

Photo by: Orlin Wagner

Washington Nationals relief pitcher Tanner Roark (59) during a baseball game against the Kansas City Royals at Kauffman Stadium in Kansas City, Mo., Friday, Aug. 23, 2013. (AP Photo/Orlin Wagner)