Arbella Early Edition June 7, 2024 6:55 pm Mannix: Mavericks' ‘biggest problem' will be solving C's defense Chris Mannix breaks down the Celtics’ defensive performance against the Mavericks in Game 1 of the NBA Finals and why it could spell a short series if Dallas is unable to solve it. Celtics Videos 2:53 Why Derrick White's extension is Celtics' ‘biggest' offseason move 1:43 REACTION: Wyc Grousbeck announces plans to sell stake in Celtics 3:27 Jayson Tatum, Celtics reportedly agree to five-year, $314M supermax extension 0:36 Celtics Summer League schedule and notable dates 2:04 Derrick White reportedly signs four-year, $126M extension with Celtics