(Photo credit: Daniel Jefferson-Imagn Images) Paraguay star Julio Enciso was stretchered off the field in tears on Friday, just one week before the team's World Cup opener against the U.S. men's national team. The 22-year-old attacking midfielder exited with an apparent leg injury in the 25th minute of a 4-0 friendly win against Nicaragua at Asuncion, Paraguay. Paraguay head coach Gustavo Alfaro said