 From the Fox Sports Studios in Los Angeles. Here's Monsi Bolaños. Clay Thompson may be on the move, according to multiple reports. He's agreed to join the Dallas Mavericks on a three-year, $50 million deal that requires a sign-in trade, which will send Josh Green to the Hornets. But Jason Tatum isn't going anywhere. He and the Celtics have agreed on a new five-year, $315 million Supermax extension with a player option. That is the largest contract in NBA history.