There are two main types of professional sports leagues, open and closed. Which of the following statements regarding these two types of leagues is correct? There are two main types of professional sports leagues, open and closed. Which of the following statements regarding these two types of leagues is correct? In an open league, teams cannot be relegated In open leagues, teams tend to focus more on profit-maximization than in closed leagues Closed leagues only have one league per sport and no leagues with less talented teams In a closed league, teams cannot be promoted