Brandon Webb threw only 86 pitches through eight innings Tuesday at AT&T Park, but after the Giants rallied to tie the game at 2 in the bottom of the eighth, the right-hander's night was finished.
Manager Bob Melvin stated several factors for removing his ace to start the ninth, including the fact that Webb had been hit in the upper right side of his torso in the seventh inning on a Moises Alou comebacker.
But Melvin also didn't want to leave his ace out to dry, knowing Webb could get saddled with a loss and wasn't going to pitch into the 10th if he kept San Francisco at bay, anyway.
Webb wound up getting a no-decision when Brandon Lyon, Arizona's second relief pitcher, allowed a two-run homer to Alou with one out in the bottom of the ninth for a 4-2 Giants victory.
"If we had taken the lead, I would have been out there to finish it," Webb said. "(Melvin) is watching out for me and I appreciate it. It's tough to have somebody else go out there when you feel good and have a low pitch count, but I totally understand it, we talked about it and I agreed."
Webb (16-7) lowered his ERA from 2.95 to a league-leading 2.88. The other front-runner in the Cy Young Award chase, Chris Carpenter of the Cardinals, got roughed up for six runs in a 7-5 loss to San Diego. Carpenter's ERA swelled from a league-leading 2.93 to 3.09. Carpenter has allowed 12 earned runs in his past two starts.
Webb has allowed five earned runs in his past four starts. On Tuesday, he had six strikeouts, and for the eighth time this season, he didn't allow a walk.
"I don't even know how we scored two runs off of him," Giants manager Felipe Alou said.
REPLAY: Arizona's defense had played up to perfection behind Brandon Webb for most of the night, but when push came to shove, it was the defense that helped prevent him from becoming the first 17-game winner in the National League as the Giants beat the Diamondbacks 4-2 Tuesday at AT&T Park.
Third baseman Chad Tracy committed an error when he couldn't handle Pedro Feliz's bouncing groundball to lead off the eighth. After pinch runner Fred Lewis got to third on a sacrifice bunt and a wild pitch, Alberto Callaspo fielded a groundball by pinch hitter Mark Sweeney, and he threw home to try and nail Lewis.
The throw looked to be in time, but Callaspo short-hopped the ball and catcher Chris Snyder couldn't hang on as Lewis slid in to tie the score. Moises Alou won the game for the Giants an inning later with a one-out, two-run homer off Brandon Lyon.
"He threw the ball beautifully, as good as he has all year," manager Bob Melvin said of Webb. "We just weren't flawless behind him, and we didn't give him much support."
--2B Orlando Hudson rejoined the team Tuesday, arriving at AT&T Park about 90 minutes before Arizona's game with San Francisco after attending to personal family issues the previous two days. It was thought he would be in the starting lineup, but manager Bob Melvin went with rookie Alberto Callaspo instead.
--C Johnny Estrada said he expects to be traded by the Diamondbacks in the offseason and his preference would be to go back to the Phillies, who signed him in 1997.
"They're a team that obviously has a good nucleus of players, they're going to need a catcher, and I've been there before, I know their whole coaching staff and they know me," Estrada said. "I know what Philly fans expect, too. I know it's a tough place to play, but the bottom line is, they want a winner on the field and they don't care how you do it. They want you to win, they don't want just a bunch of yes-men."
--C Miguel Montero, whom Arizona thinks could be ready for everyday duties at the major league level next season, will make his third start behind the plate on Saturday when -- for the third time -- he catches RHP Edgar Gonzalez.
--CF Eric Byrnes, with a home run against the Giants on Monday and a double against them Tuesday, logged an extra-base hit in consecutive games for the first time since Aug. 27-28.
--RHP Brandon Webb went 2-for-3 against Giants starter Matt Morris, marking the second multi-hit game of his career. Webb also went 2-for-3 on April 7, 2004, against the Rockies.
BY THE NUMBERS: 1-62 -- Diamondbacks' record when trailing after eight innings, through Sept. 26.
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