The Cardinals fired Mike Matheny Saturday night, waiting for the press to clear out before making the announcement:

The Cardinals posted a release on all the changes on Twitter first, after the clubhouse had cleared of media and less than 20 minutes after Matheny had last been seen in his office. The firing surprised the clubhouse, two players said after leaving the ballpark. Hitting coaches John Mabry and Bill Mueller were also fired Saturday night. A press conference is scheduled for Sunday morning to detail the reasons for Matheny’s firing, whether there will be a search for a new manager, and the new order of the coaching staff. Mozeliak and DeWitt did not return messages late Saturday night.

The Cardinals are 25-32 since May 12th, a poor two month run when the Cubs and Reds are playing well. We will see what the Cardinals have to say, but losing like this obviously did not sit well with management. There are a ton of possible replacement candidate given the number of successful manager let go at the end of the 2017 season, Dusty Baker and Joe Girardi being at the top of the list.