History: Among the 30 NBA teams, many old enemies, such as Bulls and Pistons, have been formed in the history of the NBA for more than 60 years, but the Boston Celtics and the Los Angeles Lakers have the deepest roots, or the deepest hatred. In the history of the two teams, 1 1 played the finals, which was the most time for the two teams to play the finals. The two teams won the 3 1 NBA championship. Celtics 17 times, Lakers 14 times. This 1 1 time also produced too many emperor superstars, and each game was thrilling. The fans of both sides began to criticize each other from the late 1950s, and the greatest pleasure was to beat each other.

Source: 1980, the Philadelphia 76ers played against the Boston Celtics in the NBA Eastern Conference finals, and the last game was coming to an end. At the Celtics' home court, the 76ers lead the Celtics by more than 20 points. After winning the game, they can go straight to the finals. On the other hand, the Lakers (LA) in the west won and entered the finals. Seeing that there is no hope of winning the championship, Celtic fans can't have a final confrontation with their old rivals, and even the whole audience shouted "Beat LA! ! "Give the hope of beating the Lakers to his rival Philadelphia. After this game, this slogan originally given to the Philadelphia 76ers gradually became a slogan for Boston Celtics fans to cheer for their team, and it spread more and more widely, so that after the 1990s, many NBA teams would shout this slogan if they entered the finals against the Lakers, such as the confrontation between Jordan and Johnson in the 1990s.