“Today is a very emotional day for me,” Gibson wrote in a post on X (formerly Twitter). “After 17 seasons in the NBA, I can honestly say I gave this game everything I had. Basketball gave me the opportunity to live a dream. As a kid from Brooklyn, NY, I was lucky to get a chance to display my talent on the biggest stage. From Fort Greene Projects to USC, to the Chicago Bulls, and every team and city that came after, I’m grateful for every moment, every teammate, every coach, and every person who believed in me.”