Whitley (elbow) was optioned to minor-league camp Sunday, Chandler Rome of the Houston Chronicle reports.
Whitley is recovering from Tommy John surgery undergone in March 2021 and never had a chance of breaking camp on the big-league roster. The 24-year-old has been throwing off a mound, though it's unclear where exactly he currently stands in his rehab work, but he could be ready for game action sometime in June.