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JUPITER, Fla. - Dallas Keuchel needed only 17 pitches in two scoreless innings Monday to help the Houston Astros beat the Miami Marlins 4-0.

All but three of the left-hander s pitches were strikes. He allowed one baserunner, on a single, before his final pitch induced a double play.

Miami starter Jacob Turner went two innings and gave up one run, on Marc Krauss homer. Krauss went 2 for 4 and is 5 for 9 in spring training.

J.D. Martinez doubled home a run in the seventh. Houston s Marwin Gonzalez went 2 for 2 off the bench.

Chia-Jen Lo, Houston s eighth pitcher, threw a scoreless ninth to complete a four-hitter. Houston improved to 3-1 after losing a franchise record 111 games last season.

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