Michael Jeffrey Jordan, also known by his initials MJ, is an American businessman, former professional basketball player, and former baseball player. He played 15 seasons in the National Basketball Association (NBA) between 1984 and 2003, winning six NBA championships with the Chicago Bulls. Jordan is regarded as one of the most influential sports figures in history and is considered by many to be the greatest basketball player of all time; he was integral in popularizing the sport and the NBA around the world in the 1980s and 1990s.