Tanner Roark takes the mound for the Nationals in the Beltway Series finale with the Orioles. The right-hander is coming off on his roughest outings of the season, surrendering two homers and six runs over five innings in a 6-4 loss to the Marlins last Thursday. Roark is 3-3 with a 5.66 ERA over nine starts this season.
The Orioles send rookie right-hander Tyler Wilson to the hill for the fourth start of his major league career. Wilson, 25, is 2-2 with a 3.72 ERA.
For the Orioles:
CF Gerardo Parra
3B Manny Machado
1B Chris Davis
LF Steve Pearce
C Matt Wieters
2B Jonathan Schoop
RF Ryan Flaherty
SS J.J. Hardy
RHP Tyler Wilson
For the Nationals:
2B Anthony Rendon
3B Yunel Escobar
RF Bryce Harper
LF Jayson Werth
1B Clint Robinson
SS Ian Desmond
CF Michael A. Taylor
C Wilson Ramos
RHP Tanner Roark