"إنه أمر جنوني": كيف أسفر بحث استمر ثلاث سنوات عن...

IRVINE, Calif. -- As the U.S. men's national team coach Mauricio Pochettino surveyed the scene at Championship Soccer Stadium in the Great Park Sports Complex, he could only marvel at the setup his team was enjoying.

On this day, over 5,500 people were in attendance at the USMNT's lone open training session during the World Cup, an event mandated by FIFA for every single participating team. But beyond the crowd last week, Pochettino was lauding the facilities the team had at its disposal.

"It's amazing," he told reporters. "We need to say thank you to the organization, our organization, the…