With Harper expected to rest an ailing hip, Zimmermann will try to remain among the league leaders by helping the Nationals top the Phillies and Roy Halladay on Wednesday night.
Zimmermann (15-8, 3.33 ERA) gave up three runs in 7 2-3 innings Friday against the New York Mets but was on the wrong end of a 3-2 result.
"Other than (a two-run homer to Ike Davis ), I thought I pitched great," said Zimmermann, who was coming off a 7-2 win in Kansas City on Aug. 24.
That loss left him in a four-way tie for the NL wins lead and he'll be among three 15-game winners pitching Wednesday. Pittsburgh's Francisco Liriano and Colorado's Jorge De La Rosa are the other two with St. Louis' Adam Wainwright idle until Saturday.
Zimmermann will try to at least keep pace in that race by earning his second win in five career starts in Philadelphia. He gave up two runs over 6 1-3 innings in his most recent outing at Citizens Bank Park on July 11 but took the loss in a 3-1 defeat.
Zimmermann has a 2.89 ERA in his last six starts against the Phillies but only a 2-4 record. He's received one run or fewer in each of those losses.
Harper likely won't be available to help this time as he's slated to get the night off for the Nationals (70-68), who have an off day Thursday.
Harper has hit safely in 14 of his last 16 games but is 3 for 18 (.167) in his last five. He went 0 for 5 on Tuesday but scored two runs in a 9-6 victory over Philadelphia.
Wilson Ramos homered and drove in four runs as the Nationals remained 7 1/2 games behind Cincinnati for the NL's final wild-card berth.
They'll try to cut into that sizable deficit when they face Halladay (3-4, 7.94), who has experienced mixed results in his two starts since coming back from shoulder surgery.
The right-hander gave up two runs over six innings in his return, a 9-5 victory against Arizona on Aug. 25, but allowed five runs over five innings in humid conditions Friday at Wrigley Field. He avoided the loss when Philadelphia (63-76) rallied for a 6-5 victory.
"(Halladay) struggled a little bit on command," manager Ryne Sandberg told the team's website. "It was a little warm out there but he battled. … He gave us some innings, and with our bullpen the way that it's been, we were able to keep the score in check and let the offense attempt to come back."
Halladay is 12-1 with a 2.42 ERA in his last 15 starts against the Nationals franchise with the most recent on Aug. 25, 2012.
Ramos is 4 for 9 against the two-time Cy Young Award winner, and Zimmermann is 2 for 3.
The Phillies are hoping Domonic Brown can return from an ailing Achilles as he's 4 for 6 with a double all-time against Zimmermann.
|August 22, 2013||Ian Desmond||Day-to-Day||Back stiffness|
|August 17, 2013||Taylor Jordan||15-Day DL||Lower back strain|
|August 13, 2013||Wilson Ramos||Day-to-Day||Left game - strained left hamstring|
|August 11, 2013||Jayson Werth||Day-to-Day||Right knee|
|August 01, 2013||Ross Ohlendorf||15-Day DL||Right shoulder inflammation|
|August 01, 2013||Ross Ohlendorf||15-Day DL||Right shoulder inflammation|
|August 30, 2013||Domonic Brown||Day-to-Day||Left game - sore right Achilles|
|August 28, 2013||Cody Asche||Day-to-Day||Strained left hamstring|
|August 26, 2013||Casper Wells||15-Day DL||Vision complications|
|August 17, 2013||Michael Young||Day-to-Day||Left game - sore left ankle|
|August 15, 2013||John Lannan||60-Day DL||Left knee tendinitis|
|August 14, 2013||John Lannan||Day-to-Day||Knee|
PHILADELPHIA (AP) -- Jordan Zimmermann and a pair of defensive gems were enough to keep Washington's postseason hopes flickering.
Zimmermann became the National League's first 16-game winner, pitching seven solid innings to lead the Washington Nationals past the Philadelphia Phillies 3-2 Wednesday night.
Zimmermann (16-8) struck out five, walked one and allowed two runs in winning his fourth straight start.
Ryan Zimmerman 's solo shot off Phillies reliever Zach Miner in the seventh inning tied the game at 2.
Jake Diekman (1-4) walked the leadoff batter in the eighth, then allowed pinch-runner Jeff Kobernus to score on a fielder's choice for the winning run.
The Nationals sat outfielder Bryce Harper to rest his ailing hip. They are still barely alive behind Cincinnati for the second wild-card spot
"We don't think we're out of it yet," Nationals manager Davey Johnson said.
The Phillies wasted a chance to tie the game in the eighth with runners on first and third and one out.
Craig Stammen struck out Darin Ruf and the ball scooted away from catcher Jhonatan Solano on strike three. Chase Utley was tagged out on a mad dash for home by a lunging Solano for the strike `em out-tag `em out double play.
"It was a great play. That's how we won the game," Stammen said.
Zimmermann got out of his own jam in the seventh thanks to a fantastic defensive play. Cesar Hernandez hit a grounder into the hole that second baseman Steve Lombardozzi fielded and one-hopped to Zimmerman at the bag for the third out to prevent the tying run from scoring.
"I knew I had to scoop it and keep my feet on the bag at the same time," the pitcher said.
Rafael Soriano worked the ninth for his 38th save.
Phillies starter Roy Halladay survived a miserable first inning to end up allowing three hits over six innings. Four months after right shoulder surgery, this certainly wasn't vintage Halladay. He walked five and hit two batters. He labored through a 29-pitch first inning.
But the two-time Cy Young Award winner struck out five after fanning four combined in his last two starts. He settled down after he hit or walked five of the first 10 batters he faced.
And he kept the Phillies in the game.
"It took me a little bit to find the right balance, mechanically," Halladay said. "That's going to be a little bit of a battle at times."
Laboring to hit 90 mph with his fastball, Halladay allowed the first three batters of the game to reach, then gave up a sacrifice fly. Wilson Ramos hit into a double play to end the rally and keep Halladay in the game.
He caught another break in the sixth. After retiring the first two batters, Halladay loaded the bases with two outs. Johnson decided to leave Zimmermann in the game, instead of pinch-hitting for his starter after 77 pitches. Zimmermann was retired and Halladay walked off to an ovation.
"I was feeling sorry for him the first couple of innings," Johnson said. "Then I started to hate him as he went along."
Halladay left with a 2-1 lead thanks to Hernandez's two-run double in the second inning.
"His innings got better with the lead," Phillies interim manager Ryne Sandberg said. "The Nationals' at-bats started to change a little bit."
Clearly struggling with his velocity, Halladay went with the soft stuff for most of his final four innings, and had the most effective of his three outings since returning from a rehab assignment. He is a free agent at the end of the season and wants to prove to the Phillies, or any team, that he can still be a reliable starter. He'll have three or four more starts in the final month to prove he can come close to his former All-Star form.
"I think if put in the work and put in the time, I can have those results," he said.
NOTES: The Nationals will start RHP Tanner Roark on Saturday against Miami, meaning RHP Stephen Strasburg will likely go Sunday on six days' rest. Roark had been pitching in long relief. ... Halladay made his 100th start for the Phillies. ... Denard Span 's leadoff single extended his hitting streak to 17 games, the longest for the Nationals this season.