Step 1 : Introduction to the question "Which U.S. professional sports team has the most championships?"
With 27 World Series championships, the New York 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 Baseball Hall of Fame, including Babe Ruth, Lou Gehrig, Joe DiMaggio, Mickey Mantle, Yogi Berra, and Whitey Ford. According to Forbes, the Yankees are the second highest valued sports franchise in the United States and the fifth in the world, with an estimated value of approximately $4 billion.