Gregerson, who is in the mix to close out games for the Astros this season, has a 2.25 ERA and 3:1 K:BB through four Grapefruit League innings thus far. Astros manager A.J. Hinch isn't ready to announce his closer, but Gregerson has been one of the most dependable relievers in baseball for six straight seasons and would be a middle-tier fantasy option for saves if he beats out Chad Qualls (0.00 spring ERA) and Pat Neshek (3.00 ERA) for the job.