Sunday, news of Al Horford's commitment to join the Golden State Warriors finally broke, courtesy of ESPN's Shams Charania. Boston Celtics fans have known this was coming for months. The holdup was his new team's ongoing attempt to resolve matters with restricted free agent Jonathan Kuminga.
As Horford departs Boston for the Bay, he posted a heartfelt message to his former franchise and to Celtics fans on social media.
— Al Horford (@Al_Horford) September 28, 2025
"From the moment we arrived, you have welcomed my family and I with open arms," stated Horford in a thank-you note to the team and its fan base.