Borussia fell on hard times for a spell after this. It suffered the ignominy of relegation from the Bundesliga in 1972. The first incarnation of the Westfalen stadium was constructed in anticipation of the 1974 FIFA World Cup finals. The ground was steadily expanded through to the end of the 1990s. BVB returned to the top flight in 1976 and began attracting an average crowd of over 40,000, considerably more than any other Bundesliga rival at that time.