2008–09 Boston Celtics season 2008–09 Boston Celtics season The 2008–09 Boston Celtics season was the 63rd season of the Boston Celtics in the National Basketball Association (NBA). They started the season as defending NBA champions, where they defeated the Los Angeles Lakers in the 2008 NBA Finals, winning their seventeenth NBA championship, as well as marking their ninth series victory over the Lakers in the NBA Finals. The Celtics started the season 27–2, which surpassed a mark set by the 1966–67 Philadelphia 76ers for the best two-loss start in NBA history. This run also included a 19-game winning streak, which improved a Celtics franchise
Original Celtics fourth place, while first-half winner Cleveland slumped badly to fifth place. Cleveland’s fall was precipitated by the hasty mid-season departure of star Honey Russell, who was exiled to Chicago after a disagreement with team owner Max Rosenblum. The Celtics easily disposed of the weakened Cleveland team in three straight games to take the ABL championship. In 1926, the American Basketball League, developed by sports entrepreneur George Preston Marshall, effectively railroaded the team into joining its ranks by prohibiting member teams from playing against them. The Original Celtics responded by winning the next two ABL titles. During their first full season