The Boston Red Sox have a pretty talented minor league system as is. From a borderline top 10 prospect in all of baseball with Franklin Arias, to the slugging outfielder Justin Gonzales, Boston has some solid prospects. On the pitching side of things, eyes may have been on Kyson Witherspoon or even Juan Valera. Unfortunately, Valera went down for the season with Tommy John surgery earlier this month. However, this may open up some new eyes to a 2025 third-round draft pick: Anthony Eyanson.
Anthony Eyanson: The Next Great Red Sox Pitching Prospect
Eyanson was drafted in the third round of the 2025 draft, with the 87th overall pick, becoming the fourth Red Sox pick. After spending some time at UC San Diego, he would end up transferring to LSU for his junior year. During that year, he would go 12-2 with an ERA of 3.00 and strike out 152 batters in 108 innings. That performance as the number two guy in LSU’s rotation would help lead them to the 2025 College World Series, eventually being crowned as the champions.
Projected as a late first-round/early second-round pick, the Red Sox got a steal at 87 with him. Coming off the season that he had, it’s not entirely known why he fell. But when factoring in high school prospects (31 high school seniors were taken before Eyanson’s name was called) in addition to college players, it’s understandable.
Eyanson’s Pitch Mix
His pitch mix looks pretty good, leaning more on secondary pitches than a hard fastball. His best pitch, according to MLB Pipeline, is a slider around the mid-80s. That’s said to be his swing and miss pitch, easily fooling batters. Eyanson combines that with a high-70’s curve and a mid-80’s splitter to have a solid secondary pitch mix that could be developed well within this organization. Then there’s his fastball, which primarily lies in the mid-90’s, but at LSU, he was able to bump it up to 100 at times. Regardless of how hard he throws, his pitch versatility can surely be one to keep an eye on to see improvement.
Eyanson Moved Up to Portland
He started the year with High-A Greenville, in a stacked rotation which included Witherspoon, Valera, and late first-round pick Marcus Phillips. In five starts and 20 ⅓ innings, he completely dominated. Throughout his stint in Single A, he put up an ERA of 0.44 and had 34 strikeouts compared to three walks. He also had a WHIP of 0.492, which, along with his ERA and strikeout numbers, led all of Single A.
On May 4th, he got called up to Double-A Portland, making his first start there on May 10th. He pitched four innings, letting up three hits and one run while striking out four. While that’s a pretty good debut at any level, his next start is what made him stick out to the public eye. He went against the Reading Fightin’ Phils, the Double-A affiliate of the Philadelphia Phillies. In that game, he threw five innings and didn’t allow a run. That’s impressive in itself, but it gets better. He didn’t allow a single hit in those five innings. He did allow three walks. But it’s his second career Double A start, and his seventh career professional start, and he’s coming with no hit stuff already.
Anthony Eyanson twirls five hitless frames in his second outing for the Double-A @PortlandSeaDogs 💎
MLB’s No. 72 prospect (@RedSox) has a 0.61 ERA and 0.58 WHIP through his first seven professional starts: pic.twitter.com/kCovEBWSDt
— MLB Pipeline (@MLBPipeline) May 19, 2026
The Last Word
Eyanson has begun to break out and skyrocket up prospect lists, ranking #72 on MLB Pipeline’s list and #43 on Baseball America’s. The second-best Red Sox prospect is dominating a little over a month into the minor league season. The Sox already have a couple of young homegrown pitchers doing well in the majors. But with the future of other pitchers like the struggling Brayan Bello and Sonny Gray up in the air, it’s very possible Eyanson could make his debut at some point in 2027. It’s early, but the Sox might have something very special on their hands.
Main Photo Credit: Jerome Miron-USA TODAY Sports
