Five factors to fear 

May, 11, 2010

Let the nail-biting begin.

With the training camp rosters announced and the start of the World Cup exactly one month away, we'll take a break from responsible reporting and give in to crazed speculation. Last week, we gave readers a list of reasons not to worry about the World Cup. This week, we offer five things that will keep U.S. fans up at night.

To find out the five biggest concerns facing the U.S. as the team opens training camp and prepares for South Africa, you must be an ESPN Insider.

Luke Cyphers is a former senior writer for ESPN The Magazine.
Doug McIntyre is a staff writer for ESPN The Magazine. He has covered American and international soccer since 2002.