Evan Gattis recently underwent hernia surgery and will be sidelined for the next 4-6 weeks.
Derrick Goold of the St. Louis Post-Dispatch reports that Seung-Hwan Oh has received his work visa.
Yu Darvish (elbow) is on track to begin throwing bullpen sessions in March.
Masahiro Tanaka (elbow) threw off a mound on Tuesday.
White Sox signed 1B Travis Ishikawa to a minor league contract with an invitation to spring training.