Some of the teams that are expected to be very active in the offseason are last year's champions, the Celtics, and potentially the Kings are they look to rebuild their roster from a frustrating finish this year that saw them move on from star De'Aaron Fox.

Celtics Send Message to Derrick White Amid Trade Rumors originally appeared on Athlon Sports.

The Phoenix Suns are reportedly doing "background" work on Kristaps Porzingis as they evaluate their options this offseason.

As the NBA offseason draws closer, rumors surrounding the Boston Celtics are starting to heat up. Brad Stevens is expected to make changes to the current roster, primarily due to the approximately $500 million payroll the team is facing for next season once luxury taxes are factored into the equation.

The Boston Celtics were dealt two brutal blows in their second-round playoff series against the New York Knicks. Not only did they lose the series and were eliminated from the playoffs, but they also saw superstar forward Jayson Tatum go down with a torn Achilles.