The Astros optioned Martinez to Triple-A Sugar Land on Sunday, Chandler Rome of the Houston Chronicle reports.
In addition to Martinez, the Astros also optioned Brandon Bielak to Triple-A, clearing the way for Ronel Blanco and Bryan Abreu to secure the final two spots in Houston's Opening Day bullpen, according to Rome. Martinez reached the big leagues for the first time late in the 2021 season, making three relief appearances for Houston and giving up five earned runs over three innings.