If one event can dramatically alter even the most sustainable team-building strategy, is it even possible to maintain a championship window?

Boston Celtics forward Jayson Tatum will miss the rest of the season after tearing his Achilles tendon. The team announced Tuesday that Tatum had surgery to repair the injury. Tatum, 27, was hurt in the fourth quarter of Monday’s game four playoff loss to the New York Knicks.

Boston's Jayson Tatum tumbled to the floor late in a Game 4 loss to New York. He didn't put weight on his right leg as he was helped off the court.