Rugby is a physical contact sport played on a rectangular field with teams of 15 players. The objective is to score more points than the opposing team by grounding the ball in their end zone. It can be scored through tries, worth 5 points, and conversions, worth 2 additional points. Rugby matches last 80 minutes divided into two halves of 40 minutes each. The sport emphasizes values like friendship, respect, sacrifice and discipline over cheating. The most well-known international rugby competition is the Rugby World Cup held every four years involving 20 countries, with New Zealand winning the most titles.