PHOENIX, AZ - MAY 13: Relief pitcher Tanner Roark #57 of the Washington Nationals pitches against the Arizona Diamondbacks during the MLB game at Chase Field on May 13, 2015 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)
PHOENIX, AZ - MAY 13: Relief pitcher Tanner Roark #57 of the Washington Nationals pitches against the Arizona Diamondbacks during the MLB game at Chase Field on May 13, 2015 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)