Padres agree to acquire Casey Mize from Tigers in late Trade Deadline push

The San Diego Padres reached an agreement with the Detroit Tigers late in Monday’s MLB Trade Deadline window to acquire right-hander Casey Mize, according to ’s Mark Feinsand. The report frames the move as a direct effort to bolster the Padres’ starting rotation, with both teams at the time of publication still yet to confirm the deal through official transaction channels.

The projected centerpiece of the trade is Mize, a Tigers right-hander who would give the Padres an additional, cost-controlled, MLB-ready arm intended to stabilize innings and add depth to a group that typically tightens in August as playoff races take shape. For San Diego, the timing matters because the Trade Deadline is when contenders try to ensure they have enough starting pitching to carry through a longer postseason run or, at minimum, remain competitive through the final stretch of the regular season.

If the reported framework holds, the Tigers would receive left-handed prospects in return. The league report says the trade would send left-hander Kash Mayfield and rookie lefty Jackson Wolf from the Padres to Detroit. Mayfield is described by the report as the Padres’ No. 2 prospect, while Wolf is identified as a rookie lefty. The presence of two left-handed prospects indicates Detroit’s focus on replenishing farm depth rather than swapping only near-term big-league talent.

The report also notes that it was not immediately clear whether additional players would be involved. That matters for evaluating the balance of the deal because MLB trades at the Deadline often expand beyond the headline names through the inclusion of supplementary pieces, such as additional prospects, minor-league depth, or other conditional elements. Until teams confirm details publicly, the full scope of what each side is gaining and giving up remains incomplete.

From a Padres perspective, the appeal is straightforward: adding a starting pitcher at the Deadline can reduce risk, especially if the organization believes its rotation requires more reliability for the final months of the season. San Diego’s reported willingness to act “at the buzzer” suggests internal conviction about the immediate need for rotation help, not a longer-term retooling move.

For the Tigers, the benefit is equally tangible. Acquiring prospects like Mayfield and Wolf would add pitching upside to a system built to develop and replenish. That approach is common for clubs seeking to reset their timeline, particularly when they view their competitive window as either narrowing or shifting toward future contention.

What to watch next is confirmation. Even when a deal is reported as agreed upon, MLB typically requires official transaction posting before teams can begin announced roster changes. Once San Diego and Detroit publish their transaction notes, attention will turn to how the Padres intend to integrate Mize into their rotation plan and how Detroit will map the prospect development paths for Mayfield and Wolf.