Grant Williams, Celtics couldn’t agree on new extension. What happens now?

On Monday, Grant Williams and the Celtics officially failed to come to an agreement on a contract extension, according to ESPN’s Adrian Wojnarowski — joining a lengthy list of players drafted in 2019 who will become restricted free agents in July.
Williams, P.J. Washington, Cam Johnson, Matisse Thybulle, and Rui Hachimura all will head to restricted free agency next season, per several reports. DeAndre Hunter, meanwhile, snuck a $95 million extension under the wire — a surprisingly high number for the versatile wing.