Webb was designated for assignment by the Brewers on Saturday, Adam McCalvy of MLB.com reports.
Webb was cast off the 40-man roster in order to make room for J.J. Hoover, who was recalled by the Brewers prior to Saturday's game. In another move, Brandon Woodruff was sent down to Triple-A Colorado Springs. Unless claimed off waivers, Webb will stay with the Sky Sox for the onset of the 2018 campaign.