The Boston Celtics have been the dominant team in the NBA's Eastern Conference, but a major change in the pecking order is likely considering the torn Achilles suffered by Jayson Tatum in last year's playoffs. Tatum is likely going to miss the entire season for the Celtics. Expand Tweet

Additionally, fellow superstar forward Jaylen Brown could miss some time in the early part of the season as a result of a hamstring injury. Compared to Tatum, Brown's problem is not a serious injury, but he may not be at his peak when he is able to return to action.

The Celtics , who won the league's title two years ago, still have plenty of talent. Several players may take on new roles this season. Derrick White has been one of the team's most important all-around players because of his defense, pass

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