Tigers add Tanner Rainey to active roster after Enmanuel De Jesus goes on paternity list

Detroit’s 40-man roster adjustment clears the way for a new bullpen option, with Enmanuel De Jesus taking a temporary absence tied to fatherhood.

By The Apex Times Newsroom2 min readAI-assisted Apex article

The Detroit Tigers have selected the contract of right-hander Tanner Rainey, placing him on the active roster, the team announced Tuesday. The move comes as left-hander Enmanuel De Jesus was placed on the paternity list, opening the spot Rainey will fill for the Tigers’ daily roster needs.

Under MLB roster procedures, when a player is added to the active roster through a contract selection, the club typically must make corresponding room on the 40-man roster. In this case, the Tigers had an opening on their 40-man roster already, so they did not need any additional transaction beyond Rainey’s promotion.

Rainey’s promotion is therefore best understood as a straightforward roster staffing move rather than part of a broader set of roster reshaping. With De Jesus temporarily unavailable, Detroit is ensuring it still has the pitching depth required to cover late innings and longer outings.

De Jesus, a left-handed pitcher, takes the paternity list designation, which is a temporary status used by teams when a player is expected to be away from team activities for family reasons. His placement allows the Tigers to operate with a full complement of active pitchers while maintaining roster flexibility.

For fans tracking Detroit’s bullpen usage, the key point is that this creates a new active option for manager decision-making. Rainey’s role could vary game to game depending on matchups, bullpen workload, and the specific timing of upcoming pitching needs.

As with any active-roster call-up, the immediate question is how quickly Rainey becomes integrated into the Tigers’ pitching plan. The most important marker to watch will be whether his appearance pattern suggests leverage usage (middle-to-late innings) or a shorter ramp-up phase.

The Tigers’ next step will be to monitor De Jesus’ return timetable from the paternity list and see whether Detroit treats Rainey as a temporary replacement or more of an established piece of the active pitching group during the period De Jesus is away.

Why It Matters

This is a direct bullpen and roster-messaging move, keeping Detroit’s active pitching group intact while De Jesus is temporarily unavailable.
Because the 40-man spot was already open, the Tigers avoided extra churn, suggesting the club is trying to minimize roster disruption.
Rainey’s early usage in games will indicate whether Detroit views him as an immediate high-leverage option or a short-term coverage piece.
The move also sets up the timing question of how Detroit will reconcile Rainey’s roster role when De Jesus returns from the paternity list.

Sources

Key Facts

The Tigers selected the contract of right-hander Tanner Rainey to add him to the active roster.
Left-hander Enmanuel De Jesus was placed on the paternity list, creating the active-roster spot.
Detroit had a vacancy on the 40-man roster, so no additional roster move was required.
The transaction was announced on August 11, 2026.