Dear Basketball is a heartfelt letter written by Kobe Bryant announcing his retirement from basketball. In the letter, he expresses his love for the sport and how it has been a part of his life since he was a young boy. He also acknowledges that it's time for him to say goodbye and move on to the next chapter of his life. The letter is a tribute to the sport that has given him so much and to the fans who have supported him throughout his career.