The 2025-26 season will look very different for the Boston Celtics after trading away key players and losing star forward Jayson Tatum to a torn Achilles. During a recent live stream, Celtics star guard Jaylen Brown acknowledged that the team is facing a new beginning following the major changes this offseason. "It feels like a new era," Brown said. He will likely miss the entire 2025-26 season, leaving Brown as the focal point of the Celtics offense. Boston also unloaded veteran point guard Jrue Holiday and big man Kristaps Porzingis in trades, and the team lost longtime center Al Horford to free agency.