After rallying to win the series opener, the Phillies try for a fifth straight victory over the Nationals on Saturday.Philadelphia (65-75) swept a three-game home set against Washington last week, then overcame a 5-0 deficit and scored three times in the ninth to force extra innings before winning 9-8 in 11 on Friday.Carlos Ruiz hit a two-run blast and Ben Revere added the tying solo shot in the ninth, both off closer Rafael Soriano, who suffered his second straight blown save and seventh of the season.The Phillies scored twice during an 11th inning which began when left fielder Bryce Harper collided with center fielder Denard Span, resulting in a two-base error.Despite trailing Milwaukee by 8 1/2 games for the NL's second wild-card spot -- with six teams in between -- some wide-eyed optimism remains in the Philadelphia clubhouse."We've got to go on a super run," Revere said. "Everybody talks about playoffs and everything. We want to try to do that. We're going to make history."Revere is 12 for 23 with eight RBIs in the last five contests, and batting .314 in eight games at Nationals Park this season.Winners in 10 of 14, the Phillies hope A.J. Burnett (7-15, 4.40 ERA) can end his recent road struggles against the Nationals (79-60). The right-hander is 3-0 with a 1.74 ERA at home against them this season, but 0-2 with a 10.57 ERA at Washington.Burnett gave up a solo homer to Anthony Rendon and two other hits in seven innings of a 3-2 victory over Washington on Aug. 25. That's the only win in his last seven overall starts, a stretch in which he's posted a 7.52 ERA while losing the other six.He yielded five runs and nine hits in six innings of a 6-5 defeat to the New York Mets on Sunday to fall to 0-6 with a 7.12 ERA in seven road starts since throwing a complete game for a 5-1 victory at St. Louis on June 20.Tanner Roark (12-9, 2.91) allowed two runs in six innings versus Burnett and the Phillies on Aug. 25, then gave up four runs and a season-high 11 hits in 6 1/3 innings of a 5-3 defeat at Seattle on Sunday.The right-hander was 1-0 with a 1.83 ERA in three starts prior to his last two.Adam LaRoche homered and had three RBIs despite a nagging lower back strain, a sore elbow and the remnants of a stomach bug that left him woozy while coming off the bench to drive in five runs during Wednesday's 8-5, 14-inning win over the Los Angeles Dodgers.LaRoche is a career .343 hitter versus Burnett, and is 4 for 12 with a homer and three doubles against him this season.Washington manager Matt Williams plans to address the problems plaguing Soriano, who has 31 saves but has allowed 11 runs and 18 hits in 11 innings over his last 12 outings."It's not an easy decision, none of them are, but we want to be able to close those games out," Williams said. "Sori understands that; he's been around the block.""We'll have to look to land him a little softer maybe for a few days and see where we're at."