"The game can really speed up on you once you start getting guys on base," said Doolittle, who with Madson arrived in a trade with Oakland earlier in the week. "The crowd and the energy of the stadium can kind of take over and ... you have to be mindful enough to step off the mound, slow the game down a bit, kind of press reset." Bryce Harper homered and drove in two runs, and starting pitcher Tanner Roark struck out a season-high 11. Roark (8-6) gave up two runs and three hits in seven innings for the NL East-leading Nationals. "Curveball felt good. Just keep the hitter guessing," Roark said. Harper hit his 25th home run on a full-count offspeed pitch from Anthony Banda (0-1), who lost in his major league debut. Chris Iannetta hit a two-out RBI double in the bottom half, but the Nationals opened a 4-1 lead with a three-run sixth. Read more http://www.espn.com/mlb/recap?gameId=370722129