Celtics' Jayson Tatum reportedly participating in controlled 5-on-5 scrimmages with coaches less than a year removed from ruptured Achilles Tatum has missed the start of the 2025-2026 season with a ruptured Achilles. Content Original Link: https://sports.yahoo.com/nba/breaking-news/article/celtics-jayson-tatum-reportedly-participating-in-controlled-5-on-5-scrimmages-with-coaches-less-than-a-year-removed-from-ruptured-achilles-183406424.html