The Boston Celtics are one of the most storied franchises in all of sports. Established in 1946, the Celtics have won 17 NBA Championships, more than any other team in the league. The Celtics' intense rivalry with the Los Angeles Lakers has been highlighted in recent years, as the two teams have met in the NBA finals twice in the last three seasons. Boston Celtics tickets to the TD Garden can be hard to come by, as the Celts look to capture another title in 2011.