 In his time against the Nationals, it was kind of a tale of two pitchers. Either he would be very dominant, or the Nationals would crush him. There was really no in-between. Eflin, this season, in 14 starts, a 3-5 record of 4.20 ERA, but he leads the major leagues in fewest walks per nine innings. He has walked just six batters in 81 and a third innings, so the Nationals need to be aggressive in this game and attack pitches in the strike zone. Eflin has that wicked sinking fastball with terrific movement.