The Nationals lead the Diamondbacks 3-0 after three innings, and though they missed a chance to add on to their lead in the top of the third, leaving Michael Morse stranded at second, they've built an early lead with the help of Morse and Danny Espinosa, who are probably their two hottest hitters at the moment.
Morse is 2-for-2 with a run and a RBI, having driven in Ian Desmond with a single in the first inning. He's now hitting .422 since May 1, the best mark in the majors. Espinosa kept the inning alive with a two-out single after Morse, and both players scored on Wilson Ramos' double. Espinosa is hitting .300 in his last 13 games, with five homers and 11 RBIs in that stretch.
The Nationals also caught a break in the third inning when Gerardo Parra got caught loitering off third base on a grounder to Jerry Hairston Jr., who dove back to the back to tag Parra before he could get back. Parra got far enough off third base that he had no shot to get back, but hadn't gone far enough that he had a shot to score. It was the only threat Arizona has mounted against Jordan Zimmermann, who has allowed one hit and a walk in three innings.