The Hawks kept that momentum going on Monday, when they finalized a sign-and-trade deal for Nickeil Alexander-Walker, agreeing to a four-year, $62 million deal with the Timberwolves wing, according to ESPN.

The Atlanta Hawks plan to acquire shooting guard Nickeil Alexander-Walker in a sign-and-trade with the Minnesota Timberwolves, multiple reports said Monday.

The Celtics are trading Kristaps Porzingis to the Atlanta Hawks in a three-team deal, ESPN's Shams Charania reported Tuesday. Porzingis and a second-round draft pick will head to Atlanta in exchange for Georges Niang and a second-rounder. The Hawks sent Terance Mann and their No. 22 overall pick to the Brooklyn Nets.