Astros manager A.J. Hinch confirmed that Musgrove won a rotation spot and will start the team's fourth game of the season, MLB.com's Brian McTaggart reports.
On the heels of a strong spring, the 24-year-old made the Opening Day roster for the first time in his career and will take the ball April 6 against the Mariners. Musgrove delivered a respectable 4.06 ERA (4.23 FIP) over 62 innings with the big club last season, striking out 55 batters. He may need to perform well to maintain his spot on the starting staff, however; Collin McHugh (arm) is expected to open the season on the 10-day DL, but would likely replace either Musgrove or Mike Fiers in the rotation once he's activated.