The Washington Wizards have finalized a sign-and-trade deal with the Boston Celtics for free agent forward Kris Humphries, a source close to the situation confirmed Tuesday.

Humphries, who averaged 8.4 points and 5.9 rebounds per game for Boston last season, comes to the District in exchange for part of the the $8.5 million trade exception the Wizards acquired in the three-team sign-and-trade that sent Trevor Ariza to Houston and brought Melvin Ely from New Orleans on a non-guaranteed contract.

That deal, along with the departure of free agent forward Trevor Booker to the Utah Jazz, was finalized Tuesday, opening the door for Humphries to join the Wizards. Humphries’s contract is expected to be three years and worth $13 million, according to Yahoo Sports.

The 10-year veteran acknowledged the move by tweeting out the Verizon Center’s address, cementing his place on the Wizards as a backup forward and viable post presence for the oft-injured Nene.