Gallen took a no-decision during Thursday's win over the Astros, allowing two runs on six hits and a walk while striking out seven across six innings.
The 25-year-old turned in another solid start, limiting the Astros to an RBI single by Yuli Gurriel and a solo home run by Jose Altuve. Gallen started off the season with some command issues, walking five batters in his first start. In his two subsequent starts, the right-hander has only issued two free passes. He'll carry a 2.81 ERA and 1.25 WHIP into a tough contest Tuesday at Coors Field.