The 66th edition of the Copa Libertadores, South America's Champions League, kicks off on Tuesday. In recent years, Brazil has dominated, but this year the field looks tougher. The new Club World Cup might have an impact. Young talents like Estevao have shone, and veterans like Roque Santa Cruz still play. From adolescents to veterans, everyone has a place in this competition.

• Brazil's Dominance: The past six editions have been won by Brazilian clubs, and the financial gap is growing. But Argentina and other countries have strong teams too.

• Club World Cup Impact: It's a priority, but it adds to the already cluttered calendar, affecting teams' performances.

• Up-and-Comers: Talents like Estevao and Kendry Paez get a chance to shine.

• Veterans: The likes of Roque Santa Cruz and others show age is no barrier.