Adrian Wojnarowski: No rookie extension deals for Phoenix’s Cam Johnson, Charlotte’s P.J. Washington or Boston’s Grant Williams — all headed to restricted free agency next summer, sources tell ESPN. – via Twitter wojespn
Even if the Celtics offered 4 year $40M extension, how do you pass on that kind of guaranteed money? If he has a down year or gets injured, even that amount could be off the table. Seems like a dumb risk to take.