The Las Vegas metropolitan area is home to many sports, most of which take place in the unincorporated communities around Las Vegas rather than in the city itself. Currently, the Las Vegas Valley has three major league professional teams: the Vegas Golden Knights of the National Hockey League (NHL), which began play in 2017 as the region's first major pro team, the Las Vegas Raiders of the National Football League (NFL) which began play in 2020 after relocating from Oakland, California, and the Las Vegas Aces of the Women's National Basketball Association (WNBA). The Athletics of Major League Baseball (MLB) plan to move to Las Vegas to play at a new ballpark which is estimated to be complete by 2028 after relocating from Oakland and West Sacramento, California. When this relocation happens, Las Vegas will have progressed from being the largest market in the U.S. with no teams in the men's major professional leagues to being one of the smallest markets with at least three such teams within less than a decade. In addition, the National Basketball Association has publicly confirmed Las Vegas is being considered for an expansion franchise, which would potentially make Las Vegas by far the fastest market to progress from no teams in the Big Four leagues to having teams in all four leagues.