Sport in the Dominican Republic continue to make matters worse for the average Dominican financially. The few wealthy families in the Dominican work hard to keep the interests of the United States in place so there is a revolving door that keeps the wealth in a select few families. In addition, American professional baseball has hurt Dominican professional baseball as most Dominicans who play in the MLB are not allowed to play in the Dominican League in the winter. The National Federation of Basketball holds every year a professional league, the National Basketball League, LNB (Spanish: "Liga Nacional de Baloncesto"). The National Basketball Association (NBA)
National Tennis League National Tennis League National Tennis Leagues (NTL) was a tour for professional male tennis players established in 1967 by George MacCall. In 1970 it was sold to the World Championship Tennis (WCT), a competing professional tennis league run by Lamar Hunt. The National Tennis League (NTL) was formed by former U.S. Davis Cup captain George MacCall in 1967, as a governing body to a US Professional tennis tour. It was key in moving tennis from a mostly amateur sport to a professional sport. In 1968 Billie Jean King became the first woman of the Open Era to sign a pro