Argentina soccer legend Diego Maradona has been almost as visible on TV during his country’s World Cup games in Russia as his countrymen on the field. So it was no surprise that the cameras turned on him after Marcus Rojo’s goal in the 86th minute Tuesday, which proved the game-winner in a 2-1 victory over Nigeria that gave Argentina a berth in the Round of 16. Even less of a surprise, the free-spirited Maradona promptly began flipping off Nigerian fans during the…