An expansion team is a new team in a sports league, usually from a city that has not hosted a team in that league before, formed with the intention of satisfying the demand for a local team from a population in a new area. Sporting leagues also hope that the expansion of their competition will grow the popularity of the sport generally. The term is most commonly used in reference to the North American major professional sports leagues but is applied to sports leagues in other countries with a closed franchise system of league membership. The term refers to the expansion of the sport into new areas. The addition of an expansion team sometimes results in the payment of an expansion fee to the league by the new team and an expansion draft to populate the new roster. Reasons for expansion In North America, expansion often takes place in response to population growth and geographic shifts of population. Such demographic change results in financial opportunities to engage with the new market as consumers of sports demand local teams to support. Major League Baseball (MLB) was limited to 16 teams located north and east of St. Louis, Missouri for the first half of the 20th century. During that time, the United States population doubled and expanded to the south and west. Rival interests explored the possibility of forming a rival league in the untapped markets. To forestall that possibility, one of the measures that MLB took was to expand by four teams in 1961 and 1962. Over the past four decades, MLB expanded further, to its current 30-team membership. In the context of MLB, the term "expansion team" is also used to refer to any of the 14 teams enfranchised in the second half of the 20th century. Leagues that are new and/or financially struggling may also admit large numbers of expansion teams so that the existing franchises can pocket more revenue from expansion fees. Indoor American football leagues are notorious for doing so: the leagues can double the number of teams and have many new teams fail within a year or two. Major League Soccer, after spending most of its first decade of existence with relatively stable membership and struggling finances, adopted a policy of continuous expansion beginning in 2005, a policy that the league as of 2017 has no intention of stopping. When an expansion team begins play, it