Mauricio Pochettino has found his perfect World Cup project with relentless USMNT, but bigger tests await (opens original article in a new tab)

The USMNT has started the World Cup with two wins using Mauricio Pochettino's tactics, but face tougher challenges ahead against stronger teams.

• USMNT has two wins in World Cup with Pochettino's tactics
• Pochettino's system may struggle against stronger opponents like Belgium or Spain
• USMNT's next challenges include potential tough matches in knockout stages