 Complete the following phrase:  Running up the score is rarely done by teams in the National Football League NFL and other professional American football leagues. A primary reason is that starting players and coaches are paid hundreds of thousands to millions of dollars each year, which is affected by how the players and the team performs during the season. Any attempt to run up the score increases the risks of losing a key player to an injury that could affect the teams chances for the rest of the season. Thus, if a team decides to keep their stars in during a blowout, it is usually viewed by the opponent as an insult. Another factor is that the parity that the salary cap has brought to the NFL in the 1990s has evened out competition somewhat, with less talent disparity between the best and worst teams compared to the past. It is much more difficult to run up the score to embarrassing 50 point margins in the modern game at the pro level. The greatest margin of victory at the professional level happened in the 