About 8 minute to the end of the match between Argentina and Nigeria, one of Argentina's 11 players Marcos Rojo(16) committed a foul while trying to defend the football with his head, within the keeper's box .
The foul was not considered as a foul by the referee (Cuneyt Cajon), even when Nickel Obi (super Eagle's captain) after intervention, by refusing to give Super Eagles a second penalty kick.
This action in which the referee displayed, got the Super Eagles to loose their chance of winning the world cup.
Nigerians refused to take it kindly with the referee by going straight to his social media, and raining curses on him, thinking that he was bribed to do what he did. 
I'm Nigerian and if you ever want to mention a Nigerian name, please get it correctly.
My captains name is John Michael Nchekwube Obinna, variously known as John Obi Mikel, John Mikel Obi or Mikel John Obi and not Nickel Obi (go use the Nickel and buy something for yourself).