MILWAUKEE -- Brewers outfielder Jim Edmonds injured his back in Wednesday's 14-inning 6-5 loss to the Pirates and will be evaluated again on Thursday before the start of a three-city road trip.

Milwaukee almost won the game in the bottom of the 13th inning, when Edmonds walked and stole a base for the first time since 2008. But Edmonds tweaked his back sliding into second, manager Ken Macha would learn later, and was slow rounding third on Alcides Escobar's single to left field.

Pirates left fielder Lastings Milledge did not make a good throw, but it three-hopped home, where catcher Ryan Doumit had the plate blocked. Edmonds opted to slide instead of lowering his shoulder, and he was out.

"When he came back in, he told Roger [Caplinger, the team's head athletic trainer], that he was hurt," Macha said. "I didn't think the ball beat him. Maybe a little 'jar' of the catcher and he doesn't catch it."

Macha figures that Edmonds' sore back slowed him in right field during the next half-inning, when Pittsburgh's Garrett Jones hit a go-ahead double into the corner. Edmonds was slow pursuing the baseball and made a poor throw back to the infield. Had the Brewers forced a 15th inning, Macha would have sent his backup catcher -- George Kottaras -- out to right field.

Edmonds was receiving treatment after the game in an area of the clubhouse off limits to reporters.

Wolf trying to harness slider to better results

MILWAUKEE -- Randy Wolf didn't expect to repeat his outrageous success against left-handed hitters like he did last season, when he held them to a .159 batting average and only four extra-base hits in 185 plate appearances. But he would like to be better than he has been so far in 2010.

Through his five starts as a Brewer, left-handers are batting .278 against Wolf (righties are only batting .272), and they have five extra-base hits in 42 plate appearances.

"Last year, I wouldn't expect that every year," Wolf said. "It was ridiculous."

The issue this year, Wolf said, is his slider or rather his sliders. He uses one grip against right-handed batters for a pitch that stays on the same horizontal plane, moving in toward the hitter's bat. He uses another grip against left-handed batters for a pitch with more downward movement to avoid the natural bat path.

"I'm using two different grips, but the way I'm throwing them is the same [right now]," Wolf said. "[Pitching coach] Rick [Peterson] and I talked about using my next side [session] to get more 'depth' down."

File this into the category of nitpicking, because Wolf has been solid so far. He is 2-1 with a 3.34 ERA, and he was three outs away from improving to 3-0 on Tuesday night before Trevor Hoffman suffered a blown save in the ninth inning.

Worth noting

Beginning Thursday on brewers.com, fans will have the opportunity to help select the greatest moments in franchise history through the "40 Years/40 Moments" promotion. Vignettes of 1970s highlights will appear on the website on Thursday, and voting will continue through May 10 before the top three moments of the decade are announced at Miller Park on May 14-16. The same process will occur for the '80s, '90s and 2000s, with separate polls and reveals for each decade. On Sept. 3, the polls will open again at brewers.com, and fans will be asked to vote for their top three moments, drawing from the previous decade-by-decade winners. Results will be unveiled during the season's final homestand. ... With Chris Narveson's first start on Wednesday, the Brewers have three left-handers in the rotation -- all in order. Randy Wolf pitched on Tuesday, followed by Narveson on Wednesday and Doug Davis is to start on Thursday in San Diego. Manager Ken Macha said he might have to use the team's off-day on Monday to shuffle things once again. ... The Brewers announced that third baseman Casey McGehee will not travel with the team on Wednesday night to San Diego, where a four-game series begins Thursday. McGehee will instead remain in Milwaukee, where his wife, Sarah, is expecting the couple's second child. He could then rejoin the team on Friday. ... ... The Brewers and their fans will have two members of the usual traveling party in their thoughts when they begin a West Coast trip. Bullpen coach Stan Kyles is to undergo surgery on Thursday in South Carolina for prostate cancer, and radio broadcaster Bob Uecker will have heart surgery on Friday in Milwaukee. Kyles is expected to miss six to eight weeks, and Uecker expects to be out 10-12 weeks.