Complex sentence: Each NFL team is required to schedule four preseason games, two of which must be at their home stadium, but the teams involved in the Hall of Fame game, as well as any teams playing in an American Bowl game, play five preseason games.
Split into simpler sentences: Each NFL team is required to schedule four preseason games, two of which must be at their home stadium. The teams involved in the Hall of Fame game, as well as any teams in an American Bowl game, play five preseason games.