Boston Celtics sign Robert Williams to 4 year, $54 million extension

Just four days after signing Marcus Smart to a lucrative 4 year contract extension, Brad Stevens has locked up Robert Williams to his own long term deal. The Celtics are betting on Time Lord to finally remain healthy, and if that happens this will be a great deal for the Celtics. For Williams he was able to land generational security with a guaranteed $54 million payday.