Geoff Hartlieb
RP - Athletics - MiLB
2026 Outlook
Roster %
Eligibility
Availability
The Athletics signed Geoff Hartlieb to a minor-league contract on Wednesday. The right-handed reliever is likely to begin the 2026 season in the bullpen at Triple-A Las Vegas.
Fantasy Impact
Hartlieb posted a 62:17 K:BB ratio over 53.1 innings at the Triple-A level in 2025. However, he struggled significantly during his brief time in the majors last season, allowing eight runs over just 3.1 innings.
The Tigers re-signed RHP Geoff Hartlieb to a minor league contract.
Fantasy Impact
Hartlieb tested free agency at the end of July after electing free agency. He'll remain in the Tigers organization.
The Tigers designated RHP Geoff Hartlieb for assignment.
Fantasy Impact
Hartlieb had made two appearances with Detroit. He loses his roster spot with the Tigers signing Luke Jackson.
Geoff Hartlieb does not have a locker in the Tigers clubhouse.
Fantasy Impact
It appears the Tigers have signed Luke Jackson to take the spot of Hartlieb in the bullpen.
The Tigers selected the contract of Geoff Hartlieb from Triple-A Toledo.
Fantasy Impact
Hartlieb had signed a minor league deal with Detroit. Carlos Hernandez was designated for assignment as the corresponding move.
