Six days left before the start of the World Cup 2018, where the hosts, Russia, face Saudi Arabia in the 1st match of Group A. At this point, it would be interesting to analyze the impact of some environmental factors on the performance of the countries participating in the biggest sports event in the world. Every detail is significant at this stage of the tournament.

The position of the goalkeeper becomes more and more demanding over the passage of the years. It is a common assumption that the contemporary goalkeepers have encountered too much criticism from the fans and the Press in comparison with those of 00's or 90's. That situation has taken place due to the expansion of their responsibilities, as a result of the unprecedented increase of football’s speed.