Mejia was released by the White Sox on Monday, James Fegan of The Athletic reports.
Mejia joined the White Sox's 60-man player pool Tuesday, James Fegan of The Athletic reports.
Mejia signed a minor-league contract with the White Sox on Tuesday, James Fegan of The Athletic reports.
Mejia was released by the Angels on Friday.
Mejia was designated for assignment by the Angels on Tuesday, Maria Torres of the Los Angeles Times reports.
The Angels selected Mejia's contract from Triple-A Salt Lake ahead of Sunday's 4-3 loss to the Red Sox. He retired two of the three batters he faced in his relief appearance.
Mejia cleared waivers and was outrighted to Triple-A Salt Lake on Thursday.
The Angels designated Mejia for assignment Tuesday.
Mejia (personal) was reinstated from the restricted list Thursday.
Mejia was placed on the restricted list Tuesday for personal reasons.