The U.S. men's national soccer team has won all three of its Concacaf Gold Cup matches so far, but the knockout stage will present an entirely different challenge for Mauricio Pochettino's squad ...

Now, they are in greater Minneapolis to confront a knockout bracket that seems perfectly poised. Costa Rica awaits in the quarterfinals Sunday at U.S. Bank Stadium (7 p.m. ET, Fox/Univision).

Throughout the Gold Cup group stage, across three games, around 45,000 seats were full, and over 70,000 were vacant. Now, though, as the Gold Cup knockout rounds begin, they have a chance to ...