Tuesday Matchup: Astros (Urquidy) at Rockies (Marquez), Coors Field, 6:10 p.m.

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German Marquez allowed one run in seven innings last season in his only career appearance against the Astros. He is coming off strong starts against the Giants and Dodgers (three earned runs in 13 innings). Jose Urquidy will be making his big-league debut.

Marquez has faced nine of the currentAstros, and allowed four hits in 23 at-bats, walking only two.