The Red Sox traded Weins to Detroit on Saturday in exchange for Trey Wingenter.
The Tigers will swap the 30-year-old Wingenter for a 23-year-old in Weins, who was selected in the sixth round of the 2023 First-Year Player Draft. Weins appeared in 19 games with Boston's Single-A affiliate, posting a 4.81 ERA with 29 strikeouts over 24.1 innings. He picked up three saves in five chances.