"== Major league championship numbers == 
 I rolled back your edits on List of U.S. cities by number of professional sports championships for the following reasons: 
 *The Arizona Cardinals started as the Chicago Cardinals and won two NFL championships there; 
 *The San Francisco Giants won 5 World Series when they were still the New York Giants; and 
 *The New York Nets were an ABA team, not an NBA team. This page doesn't count the ABA as a major league, since the leagues didn't truly merge the way the AFL and NFL did - only four of the ABA's 12 teams joined the NBA. 
 I'll put back the correct numbers for the New York teams - that's 34 World Series, 2 NBA Championships, and 9 NFL Championships. Thanks.  "