Cooper Flagg Set for Boston Homecoming as Mavericks Face Celtics on March 6, 2026
Cooper Flagg is expected to play when the Dallas Mavericks face the Boston Celtics on March 6, 2026, at TD Garden. The rookie returned from injury a day earlier and will likely be available again for the second game of Dallas’ back-to-back. This matchup marks a significant homecoming for Flagg, a Maine native, as he plays in Boston for the first time in his NBA career. The Mavericks aim to end a five-game losing streak against one of the Eastern Conference’s strongest teams.
Dallas Mavericks vs Boston Celtics Game Details and Team Form
The Dallas Mavericks, with a record of 21-41, will visit the Celtics, who hold a 41-21 record, at 7:00 PM ET. The game will be broadcast on ESPN. Boston enters as a heavy favorite, with simulation models placing their win probability at 80.1%. The Celtics also hold advantages in key team statistics, averaging 42.4 rebounds per game compared to Dallas’ 36.8 and committing fewer turnovers. Dallas has struggled recently, losing five straight games, and continues to rely on veterans like Klay Thompson, while Kyrie Irving remains out for the season following knee surgery.
Cooper Flagg’s Injury Timeline and Return
Cooper Flagg missed eight games after suffering a left midfoot sprain in February during a game against the Phoenix Suns, which kept him sidelined through the All-Star break. He returned to the lineup on March 5 against the Orlando Magic, playing 26 minutes and recording 18 points, five rebounds, six assists, and four blocks in a 115-114 loss. During that game, Flagg also reached 1,000 career points, becoming the second-youngest player in NBA history to achieve this milestone. The Mavericks’ latest injury report lists him as available for the game in Boston.
Dallas Mavericks Injury Report and Roster Availability
While Flagg is available, several other Dallas players appear on the injury report for March 6, 2026. Daniel Gafford and Marvin Bagley III are both listed as doubtful, while Klay Thompson and Brandon Williams are listed as probable. The active rotation includes Flagg (No. 32, forward), Naji Marshall, and P.J. Washington. Dereck Lively II remains out following foot surgery, and Tyler Smith is listed as questionable on a two-way contract. Notably, Luka Dončić is no longer on the roster following an earlier trade.
- Cooper Flagg: Available, no injury
- Klay Thompson: Probable, right adductor issue
- Daniel Gafford: Doubtful, right ankle injury
- Marvin Bagley III: Doubtful, neck injury
Cooper Flagg’s Impact This Season
Cooper Flagg has become a central part of Dallas’ lineup this season, averaging 20.3 points, 6.6 rebounds, and 4.2 assists per game. His defensive production has also stood out, highlighted by the four blocks he recorded against Orlando. This performance has placed him in the Rookie of the Year discussion, showcasing his versatility and importance to the team.
Boston Celtics Roster Notes
Boston enters the game as one of the top teams in the Eastern Conference, featuring key players like Jayson Tatum, Derrick White, and Nikola Vucevic. Tatum could return from a recent absence for this matchup, potentially setting up a high-profile duel with Flagg as Dallas attempts to stop its losing streak. The Celtics’ strong roster and form make them formidable opponents in this anticipated clash.



