Former Sixers All-Star Ben Simmons is a free agent. After spending time with the Brooklyn Nets and the Los Angeles Clippers, Simmons is reportedly gaining atten

While he's shown he can be a solid rotation player in his stint with LA last year, he still has work to do if he wants a crack at another real contract.

After losing Kristaps Porzingis, Luke Kornet, and presumably Al Horford, the Celtics don't have that many big men in their frontcourt. Their rotation of centers includes Neemias Queta, Xavier Tillman, Luka Garza, and Amari Williams.