It appears that Maradona (and over 100 other Argentine celebs) has gone to the courts to force Google and Yahoo to stop serving up websites in their searches that Maradona doesn't like. Time Magazine has a great story on the issue. Yahoo has complied while Google is waiting for an appeal.
Time makes the point that suing Google for search results is like suing the newsstand for having newspapers you don't like or forcing them to rip out pages of magazines that you don't like. If Maradona and others don't like what comes up when you google your name, sue the offending site—not Google or Yahoo! That is, if their is legal grounds to sue a site. Free speech is free speech. Libel/Slander is a different story.