Rankings of top MLB prospects were updated after the 2025 draft, breakout minor-league seasons and a busy MLB trade deadline that shifted player locations and statuses. Evaluations weigh long-term upside, risk and proximity to the majors, with players already in the big leagues eligible under rookie rules. Konnor Griffin, the No. 9 pick in 2024, rose rapidly from a high-school hitter with swing questions to the game's top prospect within about 12 months. His tools include plus-plus speed and arm strength, strong shortstop defense and plate patience, and 30-homer power potential if he lifts the ball more. A successful Double-A showing would push him to 65 FV.
A lot has changed since the last time we ranked the top MLB prospects. The MLB draft and breakout seasons have added new names to our list, replacing players who have graduated or regressed in 2025 -- and some of the prospects on the list are in new places after a busy MLB trade deadline. All of that movement makes this the perfect time for an updated ranking of the top players in the sport -- along with some of the biggest risers of the season -- heading into the final weeks of the minor league season.
It has been an improbable rise for the No. 9 pick in the 2024 MLB draft, going from being a high school hitter with big questions about his swing to ranking as the top prospect in the game in roughly 12 months. I compared Griffin's upside to Fernando Tatis Jr. at draft time and he's following that plan, but with even better early reports on his shortstop defense and patience.
Griffin is a plus-plus runner and thrower who can be average to above defensively almost anywhere on the field and has 30-homer upside, especially if he can lift the ball a bit more. With some performance in Double-A (he was just promoted to the level), he will move into the hallowed 65 FV
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