The Phillies have had a lot of success in games started by Jonathan Pettibone, and if they want any hope at hitting .500 by Memorial Day, they will need that trend to continue Saturday.
Pettibone is a perfect 3-0 this season, and the Phillies have been victorious in five of his six starts. They entered the weekend as winners of their last two series, but dropped the series opener to the Nationals on Friday, 5-2, to fall to 23-25.
The 22-year-old righty was in line to take his first Major League loss in his last outing on Sunday. Pettibone had a quality start as he allowed just one earned run on seven hits in seven innings, and avoided the defeat thanks to back-to-back ninth-inning home runs from Erik Kratz and Freddy Galvis.
Dan Haren will take the mound for the Nationals, and the veteran right-hander is coming off one of his worst starts in what has been an up-and-down season.
Haren allowed seven runs on nine hits to the Padres, and his record dipped to 4-5.
While Haren is not putting up the numbers that many thought he would this season, the Nationals are also just two games above .500 nearly two months into the season.
With a National League East title last season, the expectations were high in Washington before 2013. Ryan Zimmerman said the team -- which went through a four-game losing streak last week -- is not where it wants to be right now, but he expects things to turn around.
"We have a long time, a lot of games left, a lot of season left, and we've just got to continue to grind it out, and get healthy, and just keep playing," Zimmerman said. "By the time September rolls around, I think everyone in this room is confident that we're going to be where we want to be."
Phillies: Galvis, Martinez to see time at second with Utley hurt
With Chase Utley on the disabled list with a right oblique strain, utility man Freddy Galvis will take over as the Phillies' everyday second baseman, while Michael Martinez was promoted from Triple-A Lehigh Valley on Thursday.
Galvis played in his sixth straight contest Friday, and went 1-for-3. He is hitting .278 with three homers and eight RBIs this season.
Martinez played for the Phillies in 2011 and 2012, and was hitting .239 with a .306 on-base percentage in Triple-A. Martinez's promotion may have surprised a few people, but assistant general manager Scott Proefrock said he was called up because he was the right fit with his versatility.
"At this particular point in time, Michael would step into what Freddy [Galvis'] role is and play all over the field," Proefrock said. "He can play some center field if he had to. He's been here before."
Nationals: Espinosa playing through broken wrist
It was revealed Friday that Nationals second baseman Danny Espinosa has been playing with a broken wrist for more than a month.
Espinosa did not play in Friday's win against the Phillies, but said he will not go on the disabled list.
"[Rest] is what we want, so I'm not going on the 15-day or anything longer than that," Espinosa said. "Like they said, it's not the bone fragments, it's the main bone that I guess has some kind of fracture in it or something. Best case would be two or three days, let it rest and do as much therapy as I can to get it healed."
Espinosa has struggled as of late and is hitting .087 with a .106 on-base percentage and 18 strikeouts in his last 12 games. Outfielder Jayson Werth, catcher Wilson Ramos and reliever Ryan Mattheus are also nursing injuries, and the Nationals have not fielded their complete starting lineup from Opening Day since April 14.
• Phillies reliever Michael Stutes made his season debut Friday and threw two shutout innings. The 26-year-old right-hander struck out two batters on 21 pitches (16 strikes).
• Nationals second baseman Steve Lombardozzi went 3-for-4 with two RBIs on Friday night. It was Lombardozzi's second three-hit game of the week, and he raised his average to .242.
Stephen Pianovich is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.