Mexican manager Miguel Herrera says social media is fine for the World Cup, but not sex.

Mexican manager Miguel Herrera says social media is fine for the World Cup, but not sex. Photo: AFP

The manager of Mexico, Miguel Herrera, has slapped a sex ban on his players for the duration of the World Cup in Brazil next month.

Herrera said that his team can use social networking sites such as Facebook and Twitter all they like but sex is off limits.

"No, no one," Herrera told Reforma newspaper. "If a player can't go one month or 20 days without having sexual relations, then they are not prepared to be a professional player. All the players we have selected have a pretty good resume, they all have won great things, they have been champions and obviously, they know what they want to achieve."

Herrera said the ban replicated the cut-throat nature of the World Cup where one off day can bring about a swift exit from the tournament.

"So then we will not be looking for sex or having sex at the World Cup just to have it, we are going to go after what we came for, a competition that gives us the opportunity to rise above and do something really great. So I don't think that the guys even have this [sex] on their minds. They don't have an idea about it. We talked about it because there was a buzz about it and we got criticised because I commented that in a team you have to worry about what is best for the team. In a club, you lose one week and you get a second chance the next week. But on a national team, you lose once and you are out of the World Cup."

Herrera later admitted there was no way to enforce the ban.

"I am not thinking about prohibiting sex. I am thinking about football. I hope the players are thinking the same way," he said. "Forty days of sexual abstinence is not going to hurt anyone."

The Mexican national team have struggled since the last World Cup in South Africa in 2010.  They were one of the last teams to qualify for 2014 after they failed to earn an automatic berth in the CONCACAF group finishing behind the US, Costa Rica and Honduras. They made the final 32 only after beating New Zealand in a sudden-death tie.

Herrera was appointed to the job in October last year and was the fourth national team manager Mexico had within a month following their troubled qualification campaign.

At the 2011 Copa America Mexico finished last in their group after eight players were removed from the team for inviting prostitutes to their hotel in Quito, Ecuador.

Former Arsenal striker Carlos Vela was one of two players banned for six months in September 2010 after allegedly throwing an all-night party following Mexico’s 1-0 win in a friendly against Colombia in Monterrey.