Whether or not the Nationals win their fifth straight game will come down to which Dan Haren shows up. After two months of excellence, Haren has reverted to the brutal form from his first half. Haren has recorded eight and nine outs in his past two starts while allowing seven and five earned runs. The Nationals will take on Zack Wheeler, who is 1-1 against the Nationals with a 5.56 ERA this year. Tall about the game right here.