The Boston Celtics were always going to face trade rumors after their second-round playoff exit at the hands of the New York Knicks. Brad Stevens has one of the most expensively constructed rosters in the NBA. If Boston doesn't duck under the second apron luxury tax, it could be facing a $500 million payroll once taxes are included.

Former Celtics big man Robert Williams is a likely trade candidate this offseason due to a logjam in the Blazers frontcourt. One Boston rival is already reportedly making inquiries about the big man.