Alexander will serve as the Rangers' opening pitcher Monday in Miami, Kennedi Landry of MLB.com reports.
The left-handed Alexander will cover the first inning or two versus the Marlins before turning the ball over to Kumar Rocker, who is slated to handle the bulk of the workload for Texas. Alexander has delivered a 2.97 ERA and 23:10 K:BB over 30.1 frames for the Rangers this season.