As the Celtics called for a timeout, the atmosphere turned tense. Tatum’s distress was palpable, and the concern on the faces of his teammates—most notably Al Horford—was clear as they rushed to his side. The 25-year-old superstar was unable to put any weight on his injured foot, ultimately being wheeled off the court and into the locker room, leaving a cloud of uncertainty hanging over the Celtics’ future.