The flags of Paraguay and Panama both contain red, white and blue. But that’s no excuse for ESPN, which made an embarrassing mistake Friday night when previewing the USA-Paraguay men’s soccer game in the World Cup. During a betting segment, the analysts discussed Paraguay and had the correct flag on the screen, but the graphic on the bottom of the monitor read: “U.S. opens World Cup tonight vs. Panama (9 ET).” The erroneous graphic made two appearances in the segment. Paraguay is in South