One of those is the defending champion Boston Celtics, who — at full health — dropped a disappointing game Wednesday night against a Toronto Raptors team that entered the night with only nine victories. Boston still has elite talent, but it has one glaring issue it seemingly can’t shed.

In the past, Riley has occasionally gotten into it with his superstars near the end of their Miami tenures. He had contract tensions with Hall of Famer Dwyane Wade, which prompted Wade's stunning departure to his hometown Chicago Bulls in free agency during the summer of 2016.