HOUSTON (AP) — Mauricio Dubón hit a two-run homer, Framber Valdez struck out 10 in six innings and the Houston Astros came from behind to beat the Pittsburgh Pirates 5-4. Dubón came in to pinch hit in the sixth inning with the Astros trailing 4-3. He hit a 97 mph sinker from reliever Colin Holderman (3-2) off the signage above the left field seats to give Houston the lead. Valdez (10-5) gave up four runs on six hits in six innings for his fifth win in his last seven starts. Josh Hader pitched the ninth for his 21st save. Joey Bart hit a two-run homer for Pittsburgh.