By Chris Sheridan Of the 12-team field for the 2012 Olympics, eight of the 12 competitors are set: Team USA, Spain, France, Argentina, Brazil, Australia, Great Britain and Tunisia. We’ll know the identity of the 9th — China or Jordan — before the end of the weekend. If it is Jordan, led by former New Zealand national team coach Tab Baldwin, there will be one extra American athlete at the Opening Ceremonies in London. He is Rasheim Wright, a 30-year-old 6-foot-4 guard from Philadelphia’s