MLB PREVIEWS

With three straight victories, the Colorado Rockies are trying to turn their season around. They will need a healthy and productive Troy Tulowitzki, though, if they are to keep their positive momentum going. The Rockies will try for a four-game sweep of Houston when they host the Astros on Thursday, but will likely be without Tulowitzki, who strained his left groin in Wednesday’s 13-5 victory. Houston has lost a season-high five straight contests and has yielded 29 runs in the first three games of the series.

The Rockies will need Carlos Gonzalez and Dexter Fowler to keep carrying the offense. Gonzalez had the first three-homer game of his career Wednesday and Fowler went 2-for-5 with a three-run homer; he's 9-for-14 in the series.

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