The summer of 2016 was a golden moment for Cleveland. The Cavaliers had just pulled off the unthinkable, rallying from a 3-1 deficit to defeat the Golden State Warriors in the NBA Finals, delivering the city’s first championship in 52 years. LeBron James had fulfilled his promise. The Cleveland Indians were also one inning away from a World Series title, adding to the electric atmosphere. But that euphoria proved fleeting. By the summer of 2017, after the Cavs lost the Finals to the Warriors in five games, tensions simmered beneath the surface. Kyrie Irving, the 2013 All-Star Game MVP and the hero of Game 7 in 2016 with his iconic three-pointer, reportedly wanted out. He was tired of playing in LeBron’s shadow and sought a larger role elsewhere.

On August 22, 2017, the Cavs granted his wish. Irving was traded to the Boston Celtics in a blockbuster deal that brought back Isaiah Thomas, Jae Crowder, Ante Zizic, and a 2018 first-round pick. At the time, the trade looked like a gamble. Thomas had just finished a sensational season with Boston, averaging nearly 29 points per game and finishing fifth in MVP voting, but a hip injury was already a concern. Crowder was a reliable two-way forward, though he had just lost his mother on the night of the trade, a weight he carried all season. Zizic was a raw young center, and the pick would eventually become Collin Sexton, a dynamic guard who would later play a key role in acquiring Donovan Mitchell.

The 2017-18 season was a rollercoaster. Thomas missed the first two months recovering from his hip, forcing the Cavs to start Derrick Rose, Jose Calderon, and DeAndre Liggins alongside LeBron and Kevin Love. Dwyane Wade came off the bench, but the chemistry was never right. Thomas returned in January but looked a step slow, and his brief tenure ended with a reported shoulder bump incident with LeBron after a win over the Timberwolves. He was shipped to the Lakers at the trade deadline, along with Crowder, in a deal that brought Jordan Clarkson and Larry Nance Jr. to Cleveland. The team stumbled through the playoffs, relying on LeBron’s heroics to reach the Finals. Then came Game 1 against the Warriors, where George Hill missed a critical free throw and J.R. Smith famously forgot the score in the final seconds, costing the Cavs a chance to steal the game. Irving, who had hit huge free throws in similar moments, was sorely missed.

After the Finals sweep, LeBron left for the Lakers, and the Cavs entered a rebuild. The trade’s long-term impact was mixed. The first-round pick became Sexton, who electrified the team during the rebuilding years and even helped the Cavs beat Irving’s Nets in a game where Kevin Durant, James Harden, and Irving played together for the first time. That pick eventually became the centerpiece of the deal that brought Donovan Mitchell to Cleveland in 2022, setting the stage for the team’s resurgence. Meanwhile, Irving’s career took a winding path. He thrived in Boston for a season before clashing with teammates, then joined the Nets, where injuries and off-court issues limited his impact. He reached the 2024 NBA Finals with the Mavericks, losing to the Celtics in five games, and is now recovering from an ACL tear. The trade, nine years later, still shapes the Cavs’ identity, a reminder of how one decision can alter a franchise’s course for a decade.