Rainey was designated for assignment by the Tigers on Tuesday, Cody Stavenhagen of The Athletic reports.
Rainey's relevance in the fantasy world was fleeting, as he quickly fell off the map after the 2020 season. He has bounced from Washington to Pittsburgh to Detroit in recent years while mostly struggling on the mound. He pitched to an ugly 11.17 ERA and 1.76 WHIP over 9.2 major-league innings in 2025.