Manu Ginobili and his Argentine friends better have had several great practices recently.

Argentina lost by 29 points to the American men's basketball team in pool play five days ago. The teams meet again in the semifinals on Friday, with a berth in the gold medal game on the line.

The Americans say they're not taking this one for granted. In Beijing, they beat Spain by 37 points in pool play, then had to fight to scrape by them in the medal round.

"It's never a sure thing," U.S. coach Mike Krzyzewski says.

— Brian Mahoney — Twitter http://twitter.com/briancmahoney

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EDITOR'S NOTE — "Eyes on London" shows you the Olympics through the eyes of Associated Press journalists across the 2012 Olympic city and around the world. Follow them on Twitter where available with the handles listed after each item.