Jayson Tatum shares an emotional goodbye as Jaylen Brown’s Celtics era ends with a trade to the 76ers

The Boston Celtics’ run built around its two star wings is officially over. Jayson Tatum posted an emotional farewell after Jaylen Brown was traded to the Philadelphia 76ers, marking the end of a partnership that defined Boston’s identity for almost nine years.

According to a report on Tatum’s Instagram Story, the All-NBA forward looked back with gratitude for how long the two had pushed each other, writing that it had been “9 years,” and saying he was “forever grateful” for what they accomplished together and for how it helped make him better. Tatum also referenced the arc of their shared experience, from “first-round exits” to winning a championship, and closed with encouragement for Brown’s next chapter.

The same reporting tied Tatum’s note to a broader moment for the franchise: Brown and Tatum reached the Conference Finals together five times, made two trips to the NBA Finals, and won one championship, a 2024 title over the Dallas Mavericks. With Brown now in Philadelphia, that era of Celtics basketball, built around the consistent presence of both stars at the center, ends in a single offseason headline.

While the message focused on appreciation, the context around the departure has been jarring for Celtics fans because of how recently the “Jays” shared the championship stage and how quickly the dynamic shifted after the title. Reporting in the coverage described postseason and health setbacks that complicated the Celtics’ most recent stretch, including Tatum missing much of a season after an Achilles injury the previous postseason, and Boston’s later first-round elimination.

In Philadelphia, the move also carries symbolism. Brown’s arrival gives the 76ers another high-usage, two-way wing profile after a period in which the team’s ceiling often depended on whether its roster could consistently match the intensity of teams that reached the conference’s later rounds. For the 76ers, acquiring Brown is less about a stylistic tweak and more about adding a proven offensive engine and defensive presence to an Eastern Conference matchup picture that has grown increasingly star-driven.

At the center of this story, though, is the relationship. Tatum’s public message underlines how central Brown was to the Celtics not just as a teammate but as a co-author of the franchise’s modern era. The trade changes the locker room, but it also reshapes expectations, because it breaks a pairing that had been marketed, understood, and experienced as Boston’s most reliable postseason throughline.

The next thing to watch is how each team handles the aftermath. For Boston, this means how the roster is rebalanced without a familiar second star alongside Tatum. For Philadelphia, it is how quickly Brown fits into the 76ers’ role map and how the team’s playoff identity evolves with him in the lineup.

For fans, the immediate takeaway is that this is not being framed as a simple roster change. Tatum’s message makes clear the Celtics see the trade as the end of a chapter, and the public tone suggests the departure has more emotional weight than most summer transactions.