Sam Cassell believes the Celtics' star trio has a chance to be special. The 15-year veteran, who will be a free agent next summer, also said it would "be sweet" to play with "all that firepower."

"Someone will stop them. They won't go 82-0," Cassell said. "They'll be solid. Basketball is a game of injuries. If they stay healthy, they can be in the running [for a title]."