Redmond was hired as Miami's manager in November 2012. At the end of the 2014 season, the club signed him to a contract extension through 2017.
After going 77–85 last year, the Marlins have started this season 16–22. Miami went 155–207 with Redmond at the helm.
In April, the Miami Herald reported that Redmond was on the hot seat and that the team's front office was already looking around for possible replacements.
Redmond's replacement will be officially announced at 11 a.m. ET on Monday.
- Molly Geary