Diamondbacks defeat Cardinals 4-3

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PHOENIX (AP) -- Adam Dunn doubled home the winning run in the ninth inning, and the Arizona Diamondbacks defeated the St. Louis Cardinals 4-3 on Wednesday.

For the second time in three games, the Diamondbacks rallied against the Cardinals' tattered bullpen, whose 29 losses are most in the majors.

Arizona won for only the third time in 10 games and stretched its NL West lead to three games over the Los Angeles Dodgers, who were to face San Diego on Wednesday night. Arizona opens a three-game series at Los Angeles on Friday night.

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