After the ATP Masters 1000 tournament at Monte Carlo, tennis players were required to choose from several clay-court tournaments in many European venues because some of them have overlapping schedules. For example, the Barcelona Open Banc Sabadell and the BRD Nastase/Tiriac Trophy at Bucharest had identical schedules. In addition, the Bucharest event fell under the ATP 250 category. Again, two more ATP Master 250 events began on April 28; of which one is the Portugal Open at Oeiras and other is the BMW open in Munich. Tennis stars select the tournament after taking a look at the draw and the possibility of their collecting ranking points from a particular tournament. Another factor is local participation.