In each Major League Baseball season, the trade deadline marks a turning point, and July 31, 2025 was no exception. Phones were ringing off the hook, rumors were crashing the networks, and franchises with real October aspirations were pulling out their checkbooks and arsenal of prospects. Today, with several weeks of analysis and games played, a line can already be drawn between those who got it right and those who fell short
Some teams found just what they needed, such as reliable closers, timely bats or a future promise that is starting to show flashes. Others, however, invested in pieces that failed to change the course of their season. That’s why here at MARCA we take a look at the best additions from the 2025 trade market.
Relievers who turned the tide: The most lethal arms after the 2025 MLB deadline
Detroit found a diamond in the rough with Kyle Finnegan, who went from an inconsistent season in Washington to being a flawless closer in the final stretch with the Tigers with a perfect ERA since his arrival and four saves without fail, the veteran became the kind of reinforcement that changes series.
In the same vein, names like David Bednar (Yankees), Jhoan Duran (Phillies), Mason Miller (Padres) and Tyler Kinley (Braves) have completely transformed the dynamics of their bullpens. In particular, Duran leads all closers in saves since his arrival in Philadelphia, while Miller has been virtually untouchable in San Diego. All of these arms, acquired in high-cost deals, have proven that investing in relief is still a key move for those thinking about the postseason.
Hot hitters and exciting prospects: the other big hits of the market
Miguel Andujar has revived his career in Cincinnati with an offensive performance that exceeded all expectations. Although injuries limited his time on the field, his OPS close to 1.000 since the trade places him among the best hitters in the National League in this span. The same is true for Harrison Bader, who went from a solid performance in Minnesota to a starring role in Philadelphia with an average above .330 and impeccable defense in center field.
But perhaps the biggest steal of the market was Leo De Vries by the Athletics, the 18-year-old Dominican shortstop came from San Diego in the mega trade for Mason Miller and is already on fire in Double-A with power, plate discipline and superstar projection, De Vries represents a future bet that could change recent history in Oakland.
Read the full article here
