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DENVER (AP) -- Still comfortably ahead in the NL West, the Arizona Diamondbacks insisted no one was panicking despite losing for a second straight day to the Colorado Rockies.

	Anderson

"There's nobody worried in here,'' first baseman Mark Grace said. "We just need to go out and play better baseball.

"We're fine. Our magic number is three. We need to go win three games, and we've got the ability to do it, no question. I'd like to do it the next three games.''

The Diamondbacks lost Brian Anderson to a broken foot and wasted a chance to clinch a playoff berth for the second day in a row, blowing a five-run lead in a 15-8 loss on Saturday.

Colorado, which trailed 6-1 and 8-4, tied the score with four runs in the fifth, then went ahead with a seven-run seventh that included Juan Pierre's tiebreaking single, his fifth hit of the game.

Arizona's magic number for clinching a playoff berth remained at one after the Los Angeles Dodgers beat San Diego 5-3 later Saturday. The magic number for the Diamondbacks to clinch the third NL West title in their 5-year history stayed at three.

With eight games remaining, Arizona led San Francisco by six games and Los Angeles by eight.

"We need to win our games and things will take care of themselves,'' third baseman Matt Williams said. "We can't think of anybody else.''

Manager Bob Brenly said he might try to watch either the San Francisco-Milwaukee or Los Angeles-San Diego game Saturday night, but added, "I'm more concerned for our game here (Sunday). This was not a pretty one to watch today.''

Colorado had a season-high 20 hits -- including 19 singles -- and Pierre tied his career-high for hits by going 5-for-6. Pierre, who went 4-for-5 Friday night, set a franchise record with nine hits in consecutive games.

Grace had four of the Diamondbacks' 12 hits. Arizona is 94-60 overall but just 40-46 when Randy Johnson and Curt Schilling don't start.

Anderson broke a bone in his left foot when he was struck by Ben Petrick's liner in the third inning. Anderson, who allowed three runs and four hits in 2 1/3 innings, is 6-11 with a 4.79 ERA this season.

Bret Prinz and Greg Swindell combined for the next 1 2/3 innings, but Mike Koplove gave up four runs and seven hits in two innings and Mike Fetters (3-2) allowed seven runs -- three earned -- and four hits in two-thirds of an inning.

"I got my teeth basically kicked in,'' Fetters said. "It's probably the worst inning I've had in my career, right there.''

Brian Fuentes (1-0) pitched a perfect sixth and seventh -- striking out a team record-tying five straight batters -- in relief of Denny Neagle, who gave up six runs, three of them earned, in four innings.

Todd Zeile drove in three runs without a hit -- on a sacrifice fly, a groundout and a bases-loaded walk.

Grace and Damian Miller hit back-to-back homers for Arizona off Cory Vance, who made his major league debut.

Colorado tied the score in the fifth against Koplove on run-scoring singles by Gabe Kapler and Terry Shumpert, Sandy Alomar's RBI groundout and Jason Romano's single.

Pierre got the go-ahead single in the seventh off Fetters, who threw a run-scoring wild pitch and walked Zeile with the bases loaded. A throwing error by shortstop Tony Womack on Shumpert's grounder allowed two runs in, making it 13-8, and Alomar chased Fetters with a two-run single.

"I wouldn't say I'm locked in right now,'' Pierre said. "I'm just feeling comfortable. I'm not missing my pitches, not fouling them off. When I'm getting my pitch, I'm putting it in play and not hitting it right at them.

"After my fourth hit, I started thinking about how many opportunities do you get to get five. After I got five, I think I pressed a little bit on my last at-bat, because it's not too often you get six.''

Pierre struck out in his final at-bat in the eighth.

Game notes

According to a report in the Arizona Republic, neither Johnson nor Schilling will pitch against St. Louis if they have clinched the NL West title by Tuesday. The Diamondbacks are likely to face the Cardinals in the first round of the playoffs. ... Anderson lost his previous three starts. ... Rockies OF Larry Walker, bothered all month by a sore left shoulder, was not in the lineup. ... Jeff Kellogg, scheduled to umpire at third base, left the crew to be with his wife, who went into labor. Mike Fichter replaced him. ... Arizona RHP Armando Reynoso made his first appearance since June 9, 2001. He had been sidelined by neck surgery.