Many people consider the Paris Masters to be the world's most prestigious indoor tennis tournament. The event is usually the final tournament on the tour before the season-ending Tennis Masters Cup. Because of its sponsorship, the event is officially known as the BNP Paribas Masters. Prior to the establishment of the Tennis Masters Series in the early-1990s, the event was known as the Paris Open. It is also often referred to as the Paris Indoor event. Buy tennis tickets for Paris Masters Tennis Series.