Who is he and where did he come from?
He’s Anthony Seigler. Have you not had enough infield depth pieces to read this winter? You’re in luck, because we’ve got more.
This particular infield depth piece started 25 games at third base for the playoff-bound Brewers in 2025 after making his MLB debut in July. The 26-year-old lefty from Cartersville, Georgia was a first round draft pick for the Yankees (three picks in front of Triston Casas!) and spent the first five years of his professional career in that organization. The Yankees-Red Sox
crossover comps don’t stop there, because he is just the second Navajo player of all-time to make a Major League roster, joining none other than Jacoby Ellsbury.
Is he any good?
Stop me if you’ve heard thus one before: he’s exactly okay. Which is fine! Seigler has not quite found it yet at the plate in his short Major League career, batting just .194 with one extra base hit (a double) in his 62 at-bats. He fared a lot better at Triple-A, slashing .285/.414/.478. This is bolstered by his ability to draw walks, as his percentage as a pro approaches 20 percent. He’s patient, quick, and can pull a ball when he does hit it. Check out his Prospect Savant page for this hot chart (minimum 700 pitches seen.)
Clearly, Seigler has more work to do about getting that ball out of the park, but it’s interesting looking at the small sample size that is his Major League spray chart below (blue represents fly balls) and noticing that the ballpark he played last year in Nashville (a city that, in my opinion, is bound to have a Major League team in the next few decades) has a center field wall that measures about 20 feet further than where he’ll be hitting in 2026 (we’re talking about Worcester, here, not count Fenway’s triangle…)
One more thing about Seigler: he’s played all over the diamond, splitting most of his minor league innings between catcher and second base. And if that’s not enough versatility for you, he was drafted as a two-way player who also pitches, something that is great in, uhhh, emergency situation. But, I wouldn’t put too much stock in it, as he was only called upon to take the mound once in 2025. Plus, if you ask Alex Verdugo, he can throw 98 miles per hour and should pitch, too.
Tl;dr, just give me his 2025 stats.
MLB: 34 G, .194/.292/.210, 0 HR, 5 RBI, -0.2 WAR, 16 K, 8 BB
AAA: 72 G, .285/.414/.478, 8 HR, 39 RBI, 59 K, 52 BB
Show me a cool highlight.
Here’s his first Major League hit. He has a really interesting swing here, as he appears to choke down a little. Which, if you’re hitting well, great! With Seigler, though, you almost wonder if an adjustment is needed.
But believe it or not, Seigler has even cooler highlights than his first Major League hit. That’s because, not only is he a two-way player, he’s a two-way player who throws with both hands:
What’s he doing in his picture up there?
Grinning as if the Red Sox equipment team finally got him the right bag.
What’s his role on the 2026 Red Sox?
It’s really tough to tell, and depends how good (and healthy) Durbin, Mayer, or whoever actually ends up playing third base is. It’s curious that the Red Sox dealt two pitchers, albeit some blocked from the rotation, in acquiring Durbin AND two guys that could potentially replace Durbin, who’s also going into just his second season in the show. If you see too much of Seigler outside of some Worcester highlights in 2026, it probably signals something going pretty badly. But you never know: if you see enough of Seigler at Fenway, it could also signify something went very right very quickly in developing him.
