Wolf, who spent his first eight seasons with the Phillies, will take the mound for the Brewers on Sunday with a series win on the line. The veteran left-hander is coming off a rough outing in which he allowed six runs on 10 hits over just five innings in a loss to the Rockies.
"I had little or no idea where the ball was going today," Wolf said after the loss, which dropped his record to 3-9. "When you're out there kind of guessing where the ball is going to go, it's pretty tough to pitch."
Wolf had a solid start against the Phillies at Citizens Bank Park on July 23, but came up empty-handed when Francisco Rodriguez blew the save in the ninth. In eight career starts against Philadelphia, Wolf is 3-2 with a 3.86 ERA.
The Phillies, who snapped a three-game skid with Saturday's 4-3 win, will counter with Kyle Kendrick. The right-hander threw seven shutout innings in a win against the Marlins on Tuesday, just six days removed from one of his roughest outings of 2012. More starts like his last one could help Kendrick land a spot in the 2013 rotation.
"I'm not going to think that way," he said after his last start. "I'm going to go out there and try to pitch well, keep us in games and go as long as I can in the game, go deep as I can. But yeah, obviously if I finish strong starting, it makes it easier for next year. But that's out of my hands. I've just got to go out there and give us quality outings."
Phillies: Hamels' scoreless streak snapped
Cole Hamels extended his scoreless streak to 23 innings on Saturday before it was snapped on an Aramis Ramirez solo home run in the second inning.
Hamels, who improved to 14-6 after allowing three runs over 7 2/3 innings, entered the day having thrown two consecutive shutouts for the first time in his career. His streak of 23 scoreless innings ranks the best among Phillies pitchers this season, edging Kendrick's recently snapped 22-inning scoreless string.
From Aug. 24 to Sept. 8, 2010, Hamels compiled a career-high 25-inning scoreless streak.
Left fielder Juan Pierre is one steal away from his 11th season with at least 30 stolen bases. His next swipe will put him in a six-way tie with Honus Wagner, Ozzie Smith, Bert Campaneris, Otis Nixon and Willie Wilson for the eighth-most 30-steal seasons in baseball history.
Brewers: Maldonado provides depth at catcher
Though starting catcher Jonathan Lucroy has made 14 starts since returning from injury, backup Martin Maldonado has continued to hit well when he gets his chance.
Maldonado is 11-for-31 with seven extra-base hits since Lucroy came back on July 26. Maldonado has started eight games in that span.
"I'm really happy with him," manager Ron Roenicke said. "Limited his everyday playing, and he's still swinging the bat and having good at-bats. ... He's been impressive."
"If you look at it, we have two of the best young catchers in the game today," general manager Doug Melvin said on Friday. "Both guys are  years old, and that's a position I don't think we have to look at. Catcher's always been a tough position to fill."
The Brewers' loss to the Phillies on Saturday snapped an eight-game home winning streak. A ninth straight would have tied the franchise record.
With his sixth-inning stolen base on Saturday, Milwaukee left fielder Ryan Braun recorded his third -- and the franchise's ninth -- season with at least 20 home runs and 20 stolen bases. Braun hit his fourth homer of the series in the eighth inning.
Placido Polanco went 1-for-4 in his third rehab game with Class A Clearwater on Saturday. The Phillies' third baseman has been on the disabled list since July 23 with lower back inflammation. He could be activated on Monday.
Phillies closer Jonathan Papelbon recorded his fourth four-out save of the season on Saturday.
Philadelphia first baseman Ryan Howard has hit safely in 12 straight starts at Miller Park.