The 40-man roster has been reduced to 37 players as the White Sox outrighted three players to Triple-A Charlotte on Friday.
Catcher Bryan Anderson and pitchers Brian Omogrosso and Ramon Troncoso were removed from the 40-man. Omogrosso had been on the 60-day disabled list.
Anderson, who hit .224 in 64 games at Charlotte, appeared in 10 games for the White Sox this season and went 1-for-18.
Omogrosso went 0-2 with a 9.37 ERA in 12 games for the White Sox this season but went on the DL on June 29. He had season-ending surgery in August.
Troncoso had a 4.50 ERA in 29 games for the White Sox.
Earlier this week the White Sox also outrighted catcher Miguel Gonzalez off the 40-man to Charlotte.