Mexico coach Miguel Herrera is leaving nothing to chance as he plots his side's World Cup assault and has set out some ground rules his players must abide by off the field.
Tasked with ensuring his players perform to their optimum in a tough group featuring hosts Brazil, Cameroon and Croatia, Herrera is leaving nothing to chance.
That includes banning his 23-man squad from having sex or drinking alcohol during the World Cup.
"If a player can not endure a month or 20 days without having intercourse, then you are not prepared to be a professional," Herrera told Mexican newspaper Reforma.
"Let’s play a World Cup, we’re not going to a party."
It's not only the Mexico coach who has been making demands ahead of the finals which kick off in Brazil on June 12.
Other managers and teams alike have also been making their demands known, from extra security guards to liquid soap. One team has even demanded their own bananas.
Check out the top 10 demands made by teams so far: