Sport in the Dominican Republic and the championship game that year brought in over $7,000 and commercial pressures led to the sport becoming a semi-profession in the Dominican Republic. Rafael Trujillo became president of the Dominican Republic in 1930 and he helped baseball soar in popularity as the sport gained a political connection. By the end of the 1930s, many of the finest Negro League players from the United States and Cuban players played baseball in the summer in the Dominican Republic as they were paid a fortune in order to come play. Jackie Robinson broke the color barrier in Major League Baseball in 1947
Sport in the United Kingdom Until 2008, automatic promotion and relegation existed between Super League and the Championship when it was replaced by three-year licences for clubs to play in the former. Promotion and relegation returned to Super League and the Championship in 2015. The main knock-out competition is the Challenge Cup, which also includes clubs from France and Canada, and in the past has also included clubs from Russia. Rugby league is also played as an amateur sport, especially in the heartland areas, where the game is administered by BARLA. Since the rugby union authorities ended the discrimination against playing rugby league amateur numbers