In Major League Baseball (MLB), trade candidates often include players nearing free agency who are performing well for teams that have fallen out of contention. These players are colloquially known as "rentals," as they typically join a new team for a limited time before becoming free agents. They can significantly bolster a contender's lineup while also enhancing their own market value ahead of free agency. Last summer, notable rental players included Jack Flaherty (traded from Detroit to Los Angeles), Yusei Kikuchi (from Toronto to Houston), Tanner Scott (from Miami to San Diego), Carlos Estévez (from Los Angeles to Philadelphia), and Jesse Winker (from Washington to New York). This article presents a ranking of the top 25 rental players expected to be available in the 2025 MLB trade market, based on current performance, anticipated impact, remaining club control, and the likelihood of trade. To begin, here are some honorable mentions to offer insight into additional players likely on the move.

Among the honorable mentions, some notable pitchers include Tyler Anderson (Los Angeles), Jalen Beeks (Tampa Bay), and Aaron Civale (Cleveland). On the hitting side, players such as Yoán Moncada (Los Angeles), Tommy Pham (Pittsburgh), and Amed Rosario (Washington) have garnered attention. The rankings position the top talents accordingly, with rental players expected to vary in market demand as the trade deadline approaches.

One standout in the rental category is Shelby Miller of the Arizona Diamondbacks, who signed a one-year, $1 million deal this offseason. Miller has performed well with a 1.98 ERA and 0.96 WHIP, accumulating ten saves in 37 appearances, although back issues have raised concerns about his health. On the other hand, Michael Lorenzen of the Kansas City Royals has historically been a trade candidate, posting a 4.61 ERA in 99.2 innings this season. Cedric Mullins from the Baltimore Orioles started the season strong but has faced struggles since, hitting .180 with poor defensive metrics. Meanwhile, Josh Bell of the Washington Nationals remains a solid power source, and Charlie Morton has rebounded following early-season challenges, showcasing postseason experience that could attract contenders.

As the list progresses, noted relief pitcher Gregory Soto also stands out with his fastball and ability to induce swings and misses, while Seranthony Domínguez has been effective in a setup role for Baltimore. In addition, Kyle Finnegan earned an All-Star selection in 2024 and will be a coveted option for teams seeking relief depth. Veteran Kenley Jansen continues to impress with his closing capabilities, while Isiah Kiner-Falefa offers versatility as a middle infielder.

Pitcher Michael Soroka has had ups and downs, but his potential remains evident with a 4.05 FIP. The Tampa Bay Rays’ Zack Littell could attract interest due to his solid performance among a crowded rotation. Reliever Danny Coulombe boasts the best ERA among frequent pitchers this season, while Phil Maton has excelled at limiting hard contact. Adrian Houser's resurgence in Chicago strengthens his trade value, and Harrison Bader continues to shine at the plate.

Utility player Willi Castro has developed into a key contributor for Minnesota. Marcell Ozuna retains his reputation as a power bat despite an underwhelming performance relative to his past seasons. Meanwhile, Josh Naylor has excelled with Arizona after a career year in 2024, and Ryan Helsley, an elite closer for the St. Louis Cardinals, showcases the potential to alter postseason dynamics.

Notably, Eugenio Suárez of the Cincinnati Reds leads the league in home runs heading into the trade deadline, significantly enhancing his trade value as teams seek power hitters. As the trade deadline approaches, teams will closely monitor these players, weighing their performance potential and fit within their rosters.