 Currently, North America's main soccer league, Major League Soccer, nominally requires soccer-specific stadiums, although it has allowed several teams that share ownership with other major professional teams to use existing stadiums built either for American football (such as CenturyLink Field in Seattle and Mercedes-Benz Stadium in Atlanta) or baseball (the current Yankee Stadium).Additionally, it allows teams to use multi-purpose stadiums as temporary homes while they build new stadiums, with examples including Yankee Stadium, Nippert Stadium in Cincinnati, and Nissan Stadium in Nashville.The now-defunct North American Soccer League had a similar requirement.