Celtics Notes: Boston Signs Big Man, Lose Key Free Agent, Unfortunate Al Horford Update

May 7, 2025; Boston, Massachusetts, USA; Boston Celtics center Al Horford (42) returns up court against the New York Knicks in the fourth quarter during game two of the second round for the 2025 NBA Playoffs at TD Garden. Mandatory Credit: David Butler II-Imagn Images | David Butler II-Imagn Images

The Boston Celtics had quite the start to the opening of NBA free agency on Monday.

Boston signed a center to a two-year, $5.5 million deal. The former Minnesota Timberwolves big man shows tons of potential, and at 6-foot-10, can help with the height that the Celtics so desperately need.

A main reason for Boston going after a center was unfortunately losing Luke Kornet to the San Antonio Spurs. Kornet heads to Texas on a four-year, $41 million deal after last year featured his highest usage in a Celtics uniform.

Finally, to round out the big man news, there is an unfortunate update regarding Al Horford. The Golden State Warriors are reportedly 'locked in' on the five-time All-Star as losing the veteran would be another significant blow to the Celtics.

Here’s more information on these stories and all the latest Celtics news (click the headline for the full article):

Celtics Sign Big Man to $5.5 Million Deal in Free Agency to Replace Luke Kornet

Celtics Lose Free Agent Big to Spurs in $41 Million Blockbuster Deal

Warriors ‘Locked In’ on Celtics’ 5-Time All-Star in Potential Major Free Agent Loss

Celtics' Al Horford Viewed as 'Top Target' for Warriors

Celtics Rumors: Unexpected East Team Could Emerge as Suitors for Anfernee Simons

Celtics Reportedly Had Harsh Reaction to Raptors’ Derrick White Offer

Celtics Tweets of the Day:

Congratulations on the bag Luke….You will be missed in Boston champ! Good luck on your next chapter & thank you for delivering banner 18 🫡 🥲 pic.twitter.com/OlYgdlorgp

— CELTICS ☘️ BANNER 19 (@BiggLynch) June 30, 2025

The Celtics get a new big man 💪 pic.twitter.com/Mj2DbKGQRE

— Celtics on NBC Sports Boston (@NBCSCeltics) July 1, 2025

Happy birthday Joe 🎂🎉☘️ pic.twitter.com/M7DwUDJR5h

— Boston Celtics (@celtics) June 30, 2025

Free agent center Luka Garza has agreed to a two-year, $5.5 million fully guaranteed deal with the Boston Celtics, sources tell ESPN. The Celtics negotiated the new deal with Garza's representatives Mark Bartelstein and Kieran Piller of @PrioritySports tonight. pic.twitter.com/d5x5HzGYIL

— Shams Charania (@ShamsCharania) July 1, 2025

For more news and notes on the Boston Celtics, visit Boston Celtics on SI.