Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Mario René Berrios (born May 29, 1982 in Tela) is a Honduran football defender that currently plays for Marathón in Liga Nacional de Honduras. He has been called up for the Honduras national football team 13 times since 2002. Association football, more commonly known as football or soccer, is a sport played between two teams of eleven players with a spherical ball. At the turn of the 21st century, the game was played by over 250 million players in over 200 countries, making it the world's most popular sport.