 By the end of the decade, however, there would be a rapid increase in the number of preseason games.With the AFL–NFL merger of 1970, the newly merged NFL was granted a Sherman Anti-Trust Act exemption, which emboldened some team owners to expand the exhibition schedule and to require season-ticket holders to pay for one, then two, then three home exhibition games if they wanted to keep their season tickets.From 1970 through 1977, the NFL season consisted of 14 regular season games and six exhibition games, sometimes but not always three at home and three away (the 1973 Washington Redskins, for instance, played all but one of six preseason games at home), with some played at neutral sites.