Tomorrows the big day. You're about to hit the field and try to win the World Cup. What's wrong with relieving some stress by scoring a few goals at home the night before the big game?

Bartosz Wardziak

The question facing soccer teams as they head to Brazil for the World Cup is sex or no sex? A few European teams have a strict ban on players engaging in sexual activity prior to a match.

According to the AP, wives and girlfriends are allowed to visit only on off-days. But many athletes believe sex before a game helps to reduce stress.