Gordon Hayward plays in his first regular-season game in a year, and embraces the Boston atmosphere.

Jayson Tatum scored 23 points as Boston beats Philadelphia.

Boston is favored on paper, but a few factors will determine whether that translates to the court.

Golden State is expected to make one more title run before free agency and salary demands present problems.

With LeBron James gone to the West, a path has been cleared for another team – possibly the Celtics – to reach the finals.

Some players will need to adjust to different roles with healthy starters returning.

Marcus Smart needs to learn to harness his aggression before it gets out of control and costly to the team.

Seemingly healthy, Gordon Hayward has struggled defensively in the preseason.

Kyrie Irving says he intends to re-sign with the Celtics rather than leave as a free agent.