Panama are banned from having sex during the tournament while England can only share a bed with their partners, it has emerged.
Iceland’s players will be allowed to have sex ahead of their World Cup match against Nigeria, as long as it is with their wives, coach Heimir Hallgrimsson said on Thursday.
But Panama’s players will have to go without before they play England in the second round of Group G fixtures on Sunday.
The prospects for England players are unclear but they faced no restrictions in 2014 and have their wives and girlfriends staying 30 minutes away from the team base.
Former manager Roy Hodgson was reported to have considered a ban for Euro 2016 but eventually relented.
A sexual health expert said that sex before a World Cup fixture would not be a problem in itself unless it was accompanied by drinking or lack of sleep.
Medic Lauren Streicher said that ‘sexual activity has no bearing on athletic performance whatsoever,’ according to USA Today.
When an Icelandic reporter asked if sex was banned for members of the squad, Iceland captain Aron Gunnarsson said: ‘For the time being, yes.’
But manager Hallgrimsson interjected: ‘At least as long as the wives have not arrived. No, sex is not banned.’
Argentina’s football authorities had to apologise for issuing a World Cup handbook featuring a section on how to flirt with Russian women.
Under a page entitled ‘How to stand a chance with a Russian girl?’, the manual highlighted that ‘Russian women don’t like to be treated as objects’.
It said: ‘Lots of men, because Russian women are beautiful, just want to take them to bed.
‘Lots of Russian women, like other women, pay close attention to if you are clean, smell good and are well dressed.
‘The first impression is very important for them, pay attention to your image.’
Mexico also invited controversy over claims several footballers partied with prostitutes just two weeks before their tournament opener.
Mexican magazine TV Notas said the misbehaviour occurred when the footballers were given the night off after a 1-0 win against Scotland.
The Nigeria team has been banned from dating Russian women, it was reported, although ex-Chelsea player John Obi Mikel is exempt because he has a Russian wife.
Meanwhile German boss Joachim Löw has reportedly placed tough rules on the defending champions under which sex, drinking and social media are all banned.
Elsewhere Sweden’s players reportedly stayed with their wives and girlfriends before their opening game against South Korea.
South Korea themselves are said to be subject to a ban until their results improve, after they lost the match against Sweden 1-0. (Sportsmail)