The Cubs released Scahill on Saturday, Gordon Wittenmyer of the Chicago Sun-Times reports.
Scahill agreed to a minor-league deal with the Cubs on Friday, Mark Gonzales of the Chicago Tribune reports.
Scahill was outrighted from the 40-man roster to Triple-A Charlotte on Friday and will become a free agent following the end of the 2018 season.
Scahill had his contract selected from Triple-A Charlotte on Saturday.
Scahill signed a minor-league deal with the White Sox that includes an invite to spring training, Jon Heyman of FanRagSports.com reports.
Scahill elected free agency Friday.
Scahill accepted his outright assignment to Triple-A Colorado Springs on Friday.
The Brewers designated Scahill for assignment Sunday.
Scahill's contract was selected by the Brewers on Friday.
Scahill was outrighted to Triple-A Colorado Springs on Thursday.