The Cardinals selected Zimmermann's contract from Triple-A Memphis on Tuesday.
Analysis:Zimmermann is slated to work in bulk relief in the first game of Tuesday's doubleheader against the Brewers. The left-hander has had a solid season in Memphis' rotation, turning in a 3.78 ERA and 84:21 K:BB over 78.2 innings. His stay in the majors is likely to be brief.
