Hoyt and Jandel Gustave are competing for the final spot in the bullpen, Brian McTaggart of the Astros' official site reports.
The Astros' decision to keep starter Brad Peacock as a long-relief option leaves one final spot in the bullpen. Hoyt pitched an inning Sunday, allowing a hit and striking out one batter. He showed some success against left-handers in 2016 and has some value for a team that counts Tony Sipp as its lone lefty out of the pen.