Is Klay Thompson a Red Sox fan?
Reportedly, yes. Klay Thompson is a Boston Red Sox fan, according to NBC Sports Boston.
Klay Thompson Full fan file: every team he roots for, with receipts
“Thompson posted an old photo to his Instagram page Thursday showing him in a Boston Red Sox uniform as a kid. In the caption, he explained why the Red Sox were his favorite team growing up.”
Reported by NBC Sports Boston, April 1, 2021.
Last checked November 4, 2026: the quote still matched the page word for word.
When he was a kid, the Boston Red Sox won the World Series in 2004, the year he turned 14.
What has Klay Thompson said about the Boston Red Sox?
NBC Sports Boston reported on April 1, 2021 that Klay Thompson "posted an old photo to his Instagram page Thursday showing him in a Boston Red Sox uniform as a kid. In the caption, he explained why the Red Sox were his favorite team growing up." The outlet is describing his own Instagram caption, but the account here is NBC Sports Boston's, so this is a reported fandom rather than one confirmed in a direct interview. The text of the caption itself is not given, only the outlet's description of it.
Did Klay Thompson grow up a Red Sox fan?
According to that report, yes. The Red Sox were his favorite team growing up, and the photo showed him in a Boston uniform as a kid. That makes the Red Sox a childhood team for Thompson, and nothing in the record suggests the allegiance ended or is contested.
Does the Red Sox fandom line up with where Klay Thompson comes from?
Not in any obvious geographic way. Thompson was born in Los Angeles on February 8, 1990. When he was two, his family moved to Lake Oswego, Oregon, where he was childhood friends and Little League teammates with Kevin Love, a future NBA player. He later attended Santa Margarita Catholic High School in Rancho Santa Margarita, California, and played college basketball at Washington State from 2008 to 2011. None of those places is in Boston, and the reporting does not spell out why he picked the Red Sox.
His NBA career has been spent entirely elsewhere as well. The Golden State Warriors drafted him 11th overall in 2011, and he played for them through 2024. He then spent two seasons with the Dallas Mavericks, and in 2026 he joined the Miami Heat. A separate background tie links him to the Tennessee Titans, but that is a tie only, not a stated fandom.
When did Klay Thompson become a Red Sox fan?
The reporting dates the fandom to childhood and gives no more precise point. For context, the Red Sox won the World Series in 2004, the year Thompson turned 14.
Which other athletes are Red Sox fans?
Two other players are linked to the Red Sox in the record. Stephen Curry has been reported as a fan, and Larry Bird is a fan in his own words.
Questions people ask
Is Klay Thompson a Red Sox fan?
Reportedly, yes. NBC Sports Boston reported in April 2021 that he posted a childhood photo in a Red Sox uniform on Instagram and explained why they were his favorite team growing up.
Did Klay Thompson grow up a Red Sox fan?
According to NBC Sports Boston, the Red Sox were his favorite team growing up. The report was based on his Instagram caption alongside a photo of him as a kid in a Boston uniform.
Which other athletes are Red Sox fans?
Stephen Curry has been reported as a Red Sox fan, and Larry Bird is a fan in his own words.
When did Klay Thompson become a Red Sox fan?
The reporting places it in his childhood without giving a specific year. The Red Sox won the World Series in 2004, when he was 14.