Who is he and where did he come from?
He’s Jack Anderson. The Red Sox have had to go to the 40-man roster earlier in the season than they would have liked, to the tune of bringing four guys up from Worcester so far, three of whom have made their Major League debut (four total if you count Rule 5 pick Ryan Watson.) Anderson, a 26-year old Florida State Seminole, is the latest addition. He was drafted by the Tigers in 2021, and was acquired by the Red Sox in the minor league portion of the Rule 5 draft two years ago, arriving in Double-A Portland. He made his Major League debut to stop the bleeding after a shaky Sonny Grey start and looked damn good doing so for most of it. He struck out the side in his first inning of work, got one more strikeout for a total of four, and only suffered a hit given up by a home run, finishing out 3 innings solidly.
Is he any good?
The same answer I’ve given on every debut this season: he could be. At 6’3”, 197, Anderson doesn’t quite fit the archetype of huge lefty with velocity that Craig Breslow clamors over, and that’s okay. His fastball, albeit slow, topping out at 93 miles per hour, has 19 inches of vertical break, which means Andrew Bailey is no doubt drooling over it. Also interesting is that Anderson came up through the minors as a multi-inning reliever; out of 149 minor league appearances, he started just ten, and even all of those within the last 12 months.
I think it’s fitting for Anderson to be in that multi-inning, low-leverage relief role, as that’s what he was a majority of the time in Portland last year, his best season as a pro, where he logged 75 innings at the Double-A level, striking 90 out and walking 18. Upon his callup to Triple-A, he showed the same command of the strike zone but did get hit around a little more, but it seemed to vastly improve to start 2026. Knock on wood; he hasn’t hit a batter since 2024, when he was down in Double-A. In general, he tends to not give up many walks, period.
Tl;dr, just give me the stats.
In 2025, his first as a member of Boston’s organization, Anderson pitched 86 2/3 innings across 26 games in Portland and Worcester, striking 101 batters out while walking 22 for an ERA of 3.72 and a similar FIP of 3.80.
Show me a cool highlight.
It’s cheating, sure, but I call it recency bias. Him striking the side out with his family in attendance is pretty cool. It’s even cooler when you consider that this is the same lineup our ace and a guy with 12 years of MLB service time had a lot of trouble with.
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What’s he doing in his picture up there?
Putting that pitch movement to work with a cool looking delivery.
What’s his role on the 2026 Red Sox?
You won’t see him in the rotation, nor will you see him on the Major League roster much… but he seems pretty entrenched in this relief role as long as Johan Oviedo is on the Injured List. I’ve been burned once this year with the team unceremoniously sending Tyler Uberstine back down within 24 hours of my last Meet The New Guy article, though, so I want to tread water carefully here.
There is also something to be said for keeping a few different guys that are already on an option year anyway refreshed, so it’s also totally possible Uberstine, Samaniego, Anderson and a few others split the same role in a way that splits that diplomatic difference between uhhh enhancing MLB service time and not getting in trouble with promotions rules. Still, Anderson may get pretty acquainted with the Mass Pike. But if any performance he puts in this weekend is as good as his last, he may stick around a little.
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