This might not excite Carmelo Anthony or Knicks fans, but the team added a potentially valuable depth piece in 25-year-old center Kevin Seraphin on Tuesday, according to multiple reports.

Sheridan Hoops’ Michael Scotto reported it was a one-year, $2.8 million deal for the big man from French Guiana, who accepted the Knicks’ room exception.

He will likely serve as free agent acquisition Robin Lopez’s primary backup.

The 6-foot-10 Seraphin, a first-round pick (17th overall) of the Bulls in 2010, spent his first five years in the league with the Wizards after he was dealt on draft night. He averaged 6.4 points, 3.7 rebounds and 0.8 blocks in Washington.

Seraphin appeared in a career-high 79 games last year – all as a reserve coming off the bench — and averaged 6.6 points and 3.6 rebounds in 15.5 minutes per game. His finest moment with the Wizards was arguably his last game, when he filled in admirably for ill center Marcin Gortat, posting 13 points and eight rebounds in 28 minutes in the Wizards’ Game 6 season-ending loss to the Atlanta Hawks in the second round of the playoffs.

“We stay on him because we know how good he can be, and I think sometimes he doesn’t realize how talented he really is,” Wizards guard Bradley Beal told the Washington Post in January. “I tell him all the time, ‘I’m going to give you the ball, and in my opinion no one can guard you in the post.’ ”

Seraphin signed a one-year, $3.9 million qualifying offer last summer from the Wizards, and remained in their plans, but reportedly wanted a bigger role where he would be afforded an opportunity to further showcase his skills. The Lakers and Mavericks were also involved with Seraphin, according to reports.

“Like [Oklahoma City Thunder center Enes] Kanter, he’s a backup big: excellent offensive rebounder, efficient offensively (he’s got one of the best jump hooks in the game),” ESPN Insider’s Amin Elhassan wrote. “He’s an average defensive player (which is light years ahead of Kanter), but a below-average defensive rebounder.”

The Knicks offseason seems finally complete now, after adding free agents Seraphin, guard Aaron Afflalo and forwards Derrick Williams and Lopez. The Knicks also traded for Magic forward Kyle O’Quinn, a Queens native, and drafted intriguing 7-foot-3 Latvian prospect Kristaps Porzingis fourth overall, along with former Notre Dame star, combo guard, Jerian Grant.

This move gives the Knicks now 14 players with guaranteed contracts, once the details of free agent signee Sasha Vujacic’s deal are clear and assuming guard Langston Galloway’s deal is guaranteed.