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Roman Anthony, OF, Red Sox: At long last, MLB’s top prospect arrived in the Red Sox lineup on Monday, starting in right field after Boston placed Wilyer Abreu on the injured list with an oblique injury. Anthony went hitless in his debut and also made a gaffe in right field—where he had played just four games this year in the minors—but did drive in his first career run.

Still, it’s an exciting time, especially for Red Sox fans who clamored for Anthony’s callup for weeks as the team has sputtered. It also now means, for the time being, that three members of our preseason Top 100 who are 22 years old or younger—Anthony, Kristian Campbell and Marcelo Mayer—appear set for regular roles in the Red Sox lineup.

So who’s next? Here are five players ranked prominently in our Top 100 who could soon make their big league debut.

Bubba Chandler, RHP, Pirates: If Anthony had little left to prove in the minors at the plate, Chandler sure feels like the pitching equivalent. The 22-year-old righty is regularly in the triple digits this year with his fastball and owns a 2.20 ERA and 124 strikeouts over 90 career Triple-A innings. Andrew Heaney seems like a likely trade candidate, which would open a spot for Chandler in the rotation at some point this summer—if the Pirates can wait that long.

Chase Burns, RHP, Reds: As we noted yesterday, Burns is blitzing the minors and he’s climbing the ladder at a quicker pace than 2023 first-rounder Rhett Lowder. Burns now ranks eighth in our Top 100. Keeping pace in a loaded NL Wild Card race won’t be easy, but if the Reds are in the mix down the stretch, Burns’ stuff might be too good to keep in the minors.

Andrew Painter, RHP, Phillies: Fellow Phillies prospect Mick Abel has been dynamite so far since taking a regular turn in Philadelphia’s rotation. Will Painter join him at some point? The Phillies are targeting a callup in the second half of the season, although they could use an injection of energy considering they are 2-8 over their last 10 and just placed Bryce Harper on the IL. The 22-year-old righty is striking out 27% of Triple-A hitters so far through 21 innings, although his 11.8% walk rate is a bit higher than Philadelphia would like.

Samuel Basallo, C, Orioles: Basallo is only 20 years old, has 242 career Triple-A plate appearances and the Orioles have already struggled to find regular playing time for some of their younger hitters in the majors. At the same time, at some point Heston Kjerstad and Coby Mayo need to perform. Basallo is up to 13 homers this year for Triple-A Norfolk. While they have a massive hole to dig out of, the Orioles are playing more inspired baseball recently. Adley Rutschman is also mired in what seems like a year-long slump. So it’s not crazy to wonder whether Basallo could force his way into the picture at some point—especially if Baltimore sells at the deadline.

Jacob Misiorowski, RHP, Brewers: Like Chandler, Misiorowski has regularly flung 100+ mph lasers past Triple-A hitters for much of the season. He owns a 2.22 career Triple-A ERA over 81 innings to go along with 102 strikeouts. And outside of a six-walk blip on May 31, he has managed his free passes far more effectively this season. The Brewers are another team with enviable depth and pitching development success, but Misiorowski’s stuff is too good to keep in Triple-A much longer for a team with postseason aspirations.

Editor’s Picks

25 Rising Prospects: The minor league season is still young, but with more than two months in the books, we’ve now seen enough to take stock of players who have surged past expectations so far this year. As such, Baseball America issued its first significant in-season update of the year late last week, which included risers in each organization. 

Below, you can find 25 of the biggest early risers from 2025, based on a mix of data, scouting insight and firsthand reporting from Baseball America’s team. Think of this list as the players who made the biggest tangible changes to their profile—or showed up the most in our breakouts spotlights—so far this year. 

If you’re already a subscriber, you know these are the kinds of updates that help you stay ahead of the curve. If you’re not, consider this your invitation, because there’s plenty more in store this season.

Baseball America Helium Pick Of The Day

Each day, we’ll pick a prospect that has our attention.

Theo Gillen, OF, Rays: Despite missing most of April, Gillen has surged onto the Top 100 thanks to standout reviews and early performance. The 19-year-old has a simple, level swing that generates tons of contact for Low-A Charleston, and he’s shown excellent discipline with nearly as many walks (27) as strikeouts (33). A plus runner with 17 steals in 31 games, he’s transitioning full time to the outfield after playing shortstop as an amateur. He’s still learning how to unlock his above-average raw power in games, but the Rays’ 2024 first-rounder already looks like a dynamic, well-rounded player on the rise.

Quick Hits

Prospect news and notes from around baseball…

• The White Sox called up power-armed reliever Grant Taylor.

• Rays LHP Ian Seymour, a Massachusetts native, picked up his first career win at Fenway Park in his big league debut.

• Trey Yesavage was bumped up to Double-A. 

• Nick Kurtz returned to the A’s lineup after a short IL stint with a hip injury.

• A’s shortstop Edgar Montero went 4-for-4 in the DSL yesterday and has a 1.138 OPS through six games. Already on their Top 30 after impressing at the level last year, he may force his way stateside pretty soon.

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