Less than an hour before the start of Tuesday's game against the Colorado Rockies at Busch Stadium, the Cardinals announced that right-hander Adam Wainwright has been placed on the 10-day disabled list, retroactive to July 23, due to mid-back tightness.
The team will announce a corresponding move on Wednesday.
Wainwright, 35, is leading the Cardinals with 11 wins and has posted a 4.89 ERA in his 20 games started, striking out 95 batters in 1101/3 innings pitched.
This marks just the fourth time in his career that Wainwright has been on the disabled list: 2008 for right middle finger sprain, 2011 for right elbow Tommy John surgery and 2015 for a ruptured right Achilles.
The three-time All-Star owns a career mark of 145-81 with a 3.27 ERA in 340 games pitched, ranking fifth on the Cardinals' all-time wins list.
In Memphis, right-hander Luke Weaver was pulled from his scheduled start, replaced by Miguel Sokolovich. It would seem that Weaver, who's 9-1 with a 1.91 ERA with the Redbirds, could be on his way to St. Louis.
Weaver pitched in two games earlier this season with the Cardinals, allowing three hits and no runs while striking out two and walking one. In nine appearances and eight starts a year ago, Weaver was 1-4 with a 5.70 ERA.