The Yankees are arguably the most successful professional sports team in the United States; they have won 40 AL pennants, and 27 World Series championships, all of which are MLB records. The Yankees have won more titles than any other franchise in the four major North American sports leagues. Forty-four Yankees players and eleven Yankees managers have been inducted into the National Baseball Hall of Fame, including Babe Ruth, Lou Gehrig, Joe DiMaggio, Mickey Mantle, Yogi Berra, and Whitey Ford. In pursuit of winning championships, the franchise has used a large payroll to attract talent, particularly during the Steinbrenner era. According to Forbes, the Yankees are the second highest valued sports franchise in the United States and the second in the world, with an estimated value of approximately $4 billion. The Yankees have garnered enormous popularity and a dedicated fanbase, as well as widespread enmity from fans of other MLB teams. The team's rivalry with the Boston Red Sox is one of the most well-known rivalries in U. S. sports.