Tony Batista stroked a two-run single in the ninth inning to snap a tie, as Montreal (62-86) rallied for nine runs in the final two frames.
Sun Woo-Kim (3-5) will be on the mound for the Expos. The right-hander has not allowed an earned run in his last two starts, covering 13 innings, but is without a win.
Kim allowed seven hits over seven innings in his last start, Monday at Florida.
Tony Batista, right, drove in three runs in Friday's victory against Philadelphia and has 100 RBIs on the season. (CP Photo)
Kim has lost five straight decisions in a starting role since winning first two starts. He is 0-2 with a 6.23 ERA in five career games (two starts) against the Phillies.
Philadelphia (75-72) counters with righty Vicente Padilla (6-7).
Pitching on three days rest, Padilla picked up a win last Sunday versus the Mets, tossing 6 2/3 shutout innings.
He retired the first 11 batters he faced until Cliff Floyd's infield single in the fourth inning, and allowed only one runner to reach third base all day.
Padilla is 1-4 with a 4.09 ERA in 11 games during his career against the Expos.
Friday's win was Montreal's third in its last four contests. Batista finished with three RBIs, while Terrmel Sledge had three hits and drove in four and Juan Rivera belted a two-run homer.
The Phillies, who had won seven of their last nine coming in, blew a good start by Eric Milton.
Tim Worrell took the loss, giving up five runs (two earned) on four hits in just two-thirds of an inning.
Bobby Abreu and David Bell each hit solo homers for the Philadelphia, which coughed up pair of four-run leads. Placido Polanco and Milton each drove in two runs.
Phillies first baseman Jim Thome missed Friday's game with a chest contusion and is questionable for Saturday's contest.
Phillies reliever Billy Wagner will finish serving a two-game suspension. He was disciplined for his conduct during the team's Sept. 11 game against the Mets in New York.
Philadelphia owns a 9-5 advantage in the 2004 series between these clubs, including a 6-2 mark at home. The Phillies are 21-12 against Montreal since the start of last season.
Montreal's Scott Downs (3-5) gets the start Sunday afternoon against Kevin Millwood (9-6).
