HOUSTON, June 15 (UPI) -- Jeff Karstens and five Pittsburgh relievers combined on a four-hit shutout Tuesday and the Pirates edged Houston 1-0.
Karstens (4-4) tossed 6 2/3 scoreless innings, allowing three hits with no walks while striking out three before being pulled after throwing 88 pitches.
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Chris Resop, Tony Watson, Tim Wodd and Jose Veras teamed up for four outs and Joel Hanrahan notched a 1-2-3 ninth for his 18th save as the Pirates broke a nine-game losing streak in Houston.
Garrett Jones drove in the game's only run with a second-inning single.
Bud Norris (4-6) took the hard-luck loss for the Astros, who fell to a major-league worst 25-43. The right-hander held Pittsburgh to just the one run on six hits over seven frames.
