The World Cup group stages are over after endless entertainment. Plenty of incidents and plenty of goals have driven debate and entertained fans across the globe. Of course Luis Suarez's bite on Giorgio Chellini is the most striking bit of news to have come out of the World Cup so far, but we're not here to concentrate on that for once.
This feature is here to discuss the merits of players having sex during the World Cup. Some teams have banned their stars from having sex and some teams have allowed them to go as they please. One team in particular has used sex as a reward for progressing to the second round of the tournament, but we'll get to that later.
Do the US team have a sex ban?
USA head coach Jurgen Klinsmann admitted before the tournament that the US would allow their players to have sex. "I think we are very casual in the way we approach things," Klinsmann explained when asked of the USA's sex plans. USMNT made it through to the second round of the tournament on Thursday on goal difference, and maybe the relaxed sex rules had something to do with their calm and concise approach during the group stages. But did a similar approach work for other teams?
Does sex really release testosterone?
First of all let's discuss why sex and sport is such a big topic and why some great sports stars say they need to stay separate. Arguably the greatest boxing champion of all-time Muhammed Ali always insisted that he would not have sex for as much as up to six weeks before he went in the ring. For aggression sports such as boxing it's important that testosterone levels are at their highest, and many believe that sex releases testosterone in men, thus meaning a male athlete will naturally be less aggressive in the ring.
However, this theory has been tested by some scientists this year ahead of the Sochi Winter Olympics in February. The information that came out of that study was that athletes at the Winter Olympics would in fact benefit from sex prior to performing in their respective disciplines. According to the study, testosterone levels fall to the same level as a child's if a man doesn't have sex for three months.
Which other World Cup teams have a sex ban?
As we mentioned above, the USA team did not have a ban on sex during the World Cup. Teams that did have a ban include Chile, Russia, Bosnia, Mexico, Cameroon, Ghana and South Korea. Only two of those teams made it through to the second round of the tournament, but a special mention should go to Chile who did actually beat out Spain for second place in their group. Costa Rica can be added to that list of teams with a ban, but there's was much different to most. The Central American side put a ban on their players until they made the second round. This could actually be seen as a incentive though, so post sex celebrations we will see how they react in the knockout stages.
Teams that gave the green light to sex during the tournament include the likes of England, USA, Germany, Italy, Netherlands, Australia, Brazil, Switzerland and Uruguay. The majority of these teams actually progressed through to the second round of the World Cup, which would indeed suggest that teams that didn't have a sex ban have been more successful during the World Cup so far.
For more information on the topic, see the video below.