By Mike McDaniel The three-time Sixth Man of the Year is calling it a career. Jamal Crawford, a 21-year NBA veteran and three-time Sixth Man of the Year, announced his retirement from the game of basketball on his personal Twitter account on Monday morning. “’Goodbye to the game, all the spoils the adrenaline rush.’ Thank you basketball, I owe you everything,” Crawford wrote in the tweet. Crawford spent parts of 21 seasons with nine different franchises. His five seasons with the Clippers, five with the Knicks, and four with the Bulls were his longest-tenured stops throughout his career. Crawf…