Karstens looking for a strong finish

Jeff Karstens tossed seven innings of one-run ball in a 5-1 win over the Astros on July 5. The 28-year-old right-hander has been one of the biggest surprises of the first half, going 7-4 with a 2.55 ERA over 15 starts and four relief appearances. Karstens tells PiratesDugout.com's George Von Benko that there is still plenty to improve on.

To hear George Von Benko's interview with Pirates pitcher Jeff Karstens.

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