With the Cardinals forced to use pitcher Carlos Martinez during Sunday's loss to the Mets, the team will turn to pitcher Michael Wacha to start Tuesday's game against the White Sox, reports Fox Sports.
"We were trying to stay away from Martinez, but it got to the point where it was not possible," manager Mike Matheny said.
Wacha is 10-3 with a 2.93 ERA in 17 starts this season.