Via press release, the Boston Celtics shared that the trade sending Grant Williams to the Dallas Mavericks is complete. Per the Celtics, the club will pick up a pair of second-round picks and the right to swap a third second-round pick as part of a three-team, sign-and-trade deal with Dallas and the San Antonio Spurs that also netted the Spurs a first-round pick swap, and the contract of veteran wing Reggie Bullock.
