CHICAGO -- The Cardinals made the choice following Monday's postponement to switch their starting pitching plans for the final game of this truncated series, swapping Luke Weaver and Michael Wacha in the rotation.
Weaver will now pitch on Wednesday at Wrigley Field, following Adam Wainwright. Wacha will start on Friday against the Reds on eight days' rest.
Manager Mike Matheny said the decision was strategic.
"We wanted to split up similar pitchers in Waino and Wacha, who are both high, over-the-top right-handers with breaking balls," Matheny said.