PHOENIX (AP) - Josh Collmenter scattered four hits over seven innings and Willie Bloomquist homered to start a three-run first inning and help the Arizona Diamondbacks beat the Houston Astros 6-3 on Wednesday night.
Paul Goldschmidt added a two-run single, Justin Upton went 3 for 4 with a double and a run scored, and Gerardo Parra had an RBI double for the Diamondbacks. Arizona won for the third time in four games and edged a half-game ahead of the San Francisco Giants to take sole possession of the NL West lead for the first time since June 24.
Clint Barmes and Humberto Quintero had RBI singles and Carlos Lee added a run-scoring groundout for the Astros, who have lost five of six.
Collmenter (7-7) allowed two runs, walked one and struck out five. David Hernandez pitched the ninth inning for his 10th save.
Astros starter Henry Sosa (0-1) gave up four runs on six hits in his major-league debut. Sosa walked three, struck out four and hit a batter.
Bloomquist hit Sosa's fourth pitch into the left-field bleachers for his second career leadoff home run and Arizona's fourth this season. Ryan Roberts doubled to center, Miguel Montero walked with one out and Kelly Johnson walked with two outs before Goldschmidt singled them both home to make it 3-0.
Houston scored twice in the fifth on its only four hits against Collmenter. Brian Bogusevic singled, Jimmy Paredes doubled and Barmes lined an RBI single to right. Quintero followed with a single to center, scoring Paredes to make it 3-2, but Collmenter retired the final three batters to get out of trouble.
Upton doubled and scored and a Chris Young double in the fifth to put Arizona ahead 4-2. Ryan Roberts scored from third in the seventh when Barmes dropped reliever Sergio Escalona's throw to second base on a stolen base attempt by Upton.
J.B. Shuck came home on a grounder to short by Lee to pull Houston within 5-3.
Parra tripled off the center field wall in the eighth for a 6-3 Arizona lead.
NOTES: Escalona rushed his throw on Upton's seventh-inning stolen base in part because Barmes was late covering the bag. The Astros purchased Sosa's contract after Tuesday's game. Sosa was acquired by Houston from San Francisco on July 19 for IF Jeff Keppinger and had made only one career start higher than Double-A before Wednesday. Sosa became the fifth Astros pitcher and ninth Houston player to make his season debut this season. Houston RHP Brett Myers will enter Thursday's start against Arizona looking to end a career-long six-game losing streak spanning his past eight starts. Myers is 2-2 in 10 appearances and nine starts against Arizona but hasn't beaten the Diamondbacks since June 4, 2005. LHP Joe Saunders, Arizona's starter on Thursday, is 8-4 with a 2.76 ERA in his past 15 starts. Opponents have scored 17 of their 63 runs against Saunders in the first inning and are batting .344 in the opening frame.
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