M. Spencer Green, Associated Press The Cubs' Alfonso Soriano avoids a tag by Ronny Paulino at home plate in the third inning Tuesday night in Chicago.

CHICAGO -- Jack Wilson's second sacrifice fly of the game in the 15th inning lifted the Pirates to a 4-3 victory against the Chicago Cubs last night.

"That was by far the worst game of my career," said Wilson, who was 0 for 6 and whose error led to the Cubs' third run in the seventh inning. "But then I got the two sacrifice flies. You have to give a lot of credit to the pitching staff."

Pirates pitchers held the Cubs without an earned run over the final 10 innings.

	Today Game: Pirates (LHP Tom Gorzelanny, 4-1, 2.97) vs. Chicago Cubs (RHP Jason Marquis, 4-1, 2.09), 8:05 p.m., Wrigley Field. TV, radio: FSN Pittsburgh, WPGB-FM (104.7). Key matchup: Jason Bay lifetime against Marquis is 13 for 27 with four home runs and nine RBIs. On the other hand, Jack Wilson is 6 for 36. Of note: Marquis has allowed no more than three earned runs in any of his six starts. He has yielded one earned run or less in four of those six.. Related articles Pirates Notebook: Tracy sees offense, but it's from his son Collier: Pirates' pitchers need to be more like Maglie, Drysdale Pirates Q&A with Dejan Kovacevic

Jonah Bayliss pitched three innings and got the win. Salomon Torres pitched the 15th and earned his 10th save with a perfect inning.

"Obviously a [heck] of a come-from-behind win right there," said manager Jim Tracy, who was ejected in the seventh inning. "I don't think you can say enough about the job [the pitching] did. Offensively we were getting turned away a lot."

Trailing 3-2 entering the ninth inning, the Pirates tied the game against Cubs closer Ryan Dempster.

Pinch-hitter Nate McLouth drew a one-out walk on a 3-2 pitch. Ryan Doumit, batting for Chris Duffy, lined a single into right-center field that chased McLouth to third base. Wilson's sacrifice fly to right got McLouth home.

In the first three extra innings, the Pirates put eight runners on base. Twice they had a runner at second base with no outs. In the 12th, Xavier Nady was on third with no outs.

The Pirates, who finished 2 for 20 with runners in scoring position, had a good chance to go ahead in the 10th inning after a leadoff walk to Jason Bay and a walk to Xavier Nady.

However, left-hander Will Ohman struck out Adam LaRoche on a low breaking ball that swept outside. Against right-hander Rocky Cherry, Ronny Paulino flied to right -- Bay moving to third -- and Jose Bautista flied to left.

They had another good opportunity in the 11th when Bay singled with two outs and two on, but left fielder Alfonso Soriano cut down Don Kelly at the plate.

And they had a great chance in the 12th.

Nady led off with a double into right-center field and continued to third on Jacque Jones' error. LaRoche walked. Paulino bounced to the pitcher, LaRoche moving to second.

Pinch-hitter Jose Castillo then bounced into a double play, although replays indicated Castillo beat the throw to first base from second baseman Ryan Theriot.

Such has been the state of the Pirates' offense.

Doumit, the Pirates' hottest hitter, didn't start against left-hander Ted Lilly.

	M. Spencer Green, Associated Press Pirates manager Jim Tracy argues a call at home with umpire Tony Randazzo in the third inning Tuesday night against the Chicago Cubs. Click photo for larger image.

Tracy had indicated a few days ago that Nady would start against Lilly. While Doumit historically has a higher batting average against left-handers than he does against right-handers, he has far less power from the right side.

While Doumit has swung a hot bat since his recall from Class AAA Indianapolis April 26, his teammates primarily haven't.

Pinpointing a cure is not easy.

"I don't know," Wilson said. "I don't know ... I don't know. I couldn't tell you."

See?

"You can't just really snap your fingers and all of a sudden there's a cure," Sanchez said. "We're going to have to battle, and I think it all starts with me. I put a lot of responsibility on myself. I'm not getting on base enough. I'm not doing the things that I know I'm capable of doing."

The Pirates, who scored in only four of 36 innings in Milwaukee, scored in two of the first four innings last night although they mustered just a run in each.

They took a 1-0 lead in the second inning. After Bay's leadoff double, Nady singled sharply to left, moving Bay to third. LaRoche struck out on a pitch in the dirt. Paulino hit a double play bouncer to Aramis Ramirez at third, but Ramirez had trouble digging the ball out of his glove and had to settle for the out at first base, allowing Bay to scoreg.

The Cubs tied the game in the third inning.

With one out, Ian Snell hit Soriano with a pitch. Soriano stole second base and scored on Theriot's single to right on a 1-2 pitch, although replays indicated Paulino tagged Soriano before he reached the plate.

The Pirates went back on top in the fourth inning on Nady's single and Paulino's two-out double off diving center fielder Jacque Jones' glove on the warning track.

However, the Cubs tied the game again in the fifth.

Lilly bounced a one-out single into the hole at shortstop. Soriano singled him to second. Theriot proved an annoyance again, singling to left on an 0-2 pitch.