Mendick (back) was reinstated from the 10-day injured list on Friday.
Mendick (back) went 0-for-5 with a walk in his first rehab game Tuesday with Triple-A Charlotte.
Mendick (back) is expected to begin a rehab assignment in the near future, Scott Merkin of MLB.com reports.
The White Sox placed Mendick on the 10-day injured list Saturday with lower-back tightness, retroactive to Thursday.
Mendick was scratched from the White Sox's lineup for Friday's game against St. Louis due to lower-back tightness, Scott Merkin of MLB.com reports.
Mendick was scratched from Friday's lineup against the Cardinals.
Mendick went 2-for-4 with a two-run home run and a double during Tuesday's loss to the Twins.
Mendick went 2-for-4 with two runs scored Friday against Tampa Bay.
The White Sox selected Mendick's contract from Triple-A Charlotte on Monday.
Mendick signed a minor-league contract with the White Sox on Thursday that includes an invitation to spring training.