Tatum's Achilles Tear Dooms Celtics in Knicks Series Upset

NEW YORK (Day.News) — Jayson Tatum's ruptured right Achilles tendon in Game 4 of the 2025 Eastern Conference semifinals against the New York Knicks derailed the Boston Celtics' title defense. The injury occurred in the closing minutes of a 121-113 Knicks victory on Monday, giving New York a commanding 3-1 series lead, as first reported by Fox Sports. Tatum underwent surgery the next day, sidelining the six-time All-Star for the remainder of the playoffs and clouding his 2025-26 season outlook. The Celtics refused to fold, storming back with a 127-102 rout in Game 5 at TD Garden behind Derrick White's 34 points and a franchise playoff-record-tying 22 three-pointers. Boston trailed by nine in the first half but erupted for a 23-9 third-quarter close, entering the fourth with a 91-76 lead. Jalen Brunson tallied 22 points for New York before fouling out. Yet the Knicks regrouped, eliminating Boston in Game 6 and advancing after the Celtics faltered without their leading scorer. Tatum, reflecting on the what-if, told ESPN's "First Take" he replayed the series endlessly: "I've been down 3-2 on the road three times in my career, and I was 3-0." The injury not only ended Boston's repeat bid but reshuffled the Eastern Conference hierarchy, validating preseason concerns about the Celtics' depth. Fast forward to Thursday night, May 14, 2026: Tatum returned to Madison Square Garden for the first time since the tear, dropping 24 points, 13 rebounds and eight assists in Boston's 106-? defeat to the Knicks. The Celtics rallied from a 72-59 third-quarter deficit with a 24-9 surge to lead by two entering the fourth, but New York held firm. The loss dropped Boston to 54-26, allowing the Knicks to tie them for the East's No. 2 seed.