Signed by the Miami Marlins as a free agent last April, right-hander Preston Guilmet make a total of two appearances with Miami at the major league level during the 2021 season.
Marlins first baseman/corner outfielder Garrett Cooper has been diagnosed with a torn UCL in his left elbow. With Cooper on the 60-day IL, Miami selected the contracts of outfielder Corey Bird and reliever Preston Guilmet