Red Sox ‘Best-Kept Secret’ Reliever Shines at World Baseball Classic

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A cubist interpretation of a Red Sox relief pitcher’s explosive delivery, capturing the raw energy and movement of the game.Boston Today
The Boston Red Sox have several high-profile players in their bullpen, including Aroldis Chapman and Garrett Whitlock. However, one of their most reliable relievers is Greg Weissert, a right-hander who emerged as a star for Team Italy at the recent World Baseball Classic. While Weissert may not be a household name, he has put up impressive numbers over the past two seasons and is poised to play a key role in the Red Sox bullpen in 2026 and beyond.
Why it matters
Weissert’s strong performance at the WBC and in recent MLB seasons has made him a valuable asset for the Red Sox, who will rely on him to provide quality innings out of the bullpen alongside their more well-known relievers. His continued development could give Boston an edge in close games and help them compete in the tough AL East division.
The details
In 2024, Weissert’s first season with the Red Sox, he posted a 3.13 ERA in 62 games. He followed that up with an even better 2025 campaign, recording a 2.82 ERA in 71 games with 57 strikeouts over 67 innings. While he has struggled a bit early this season with a 9.64 ERA in five outings, Weissert has shown the ability to be a reliable high-leverage reliever for Boston.
- Weissert made his MLB debut with the New York Yankees in 2021.
- He joined the Red Sox in 2024 and has been a key part of their bullpen for the past two seasons.
- Weissert recently represented Team Italy at the 2023 World Baseball Classic.
The players
Greg Weissert
A 31-year-old right-handed relief pitcher for the Boston Red Sox who has emerged as a key contributor out of the bullpen over the past two seasons, despite not being as well-known as some of his teammates.
Aroldis Chapman
A veteran left-handed relief pitcher and one of the top closers in baseball, currently playing for the Boston Red Sox.
Garrett Whitlock
A talented right-handed relief pitcher who has been a valuable part of the Boston Red Sox bullpen in recent years.
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What they’re saying
“Perhaps Greg Weissert came onto your radar as Team Italy’s closer during the World Baseball Classic. Alex Cora has one of the top bullpen duos at his disposal with Aroldis Chapman and Garrett Whitlock. Weissert, though, is capable of taking down high-leverage innings when one of those two is unavailable.”
— Tim Kelly, Bleacher Report Writer
What’s next
Weissert will look to build on his strong performances from the past two seasons and continue to be a reliable option out of the Red Sox bullpen in 2026 and beyond. His development could be key for Boston as they aim to compete in the tough AL East division.
The takeaway
While Weissert may not be a household name like some of his Red Sox bullpen teammates, his consistent production over the past two seasons has made him a valuable asset for the team. His standout performance at the World Baseball Classic has also put him on the radar of baseball fans outside of Boston, and he could emerge as one of the league’s best kept secrets in 2026 and beyond.




