1. A major professional sports league at the national level, particularly referring to one of the two major leagues in professional baseball (MLB)
The National League consists of 15 teams across the United States.
A Liga Nacional é composta por 15 equipes em toda a América do Norte.
2. Any top-tier professional sports competition organized at the national level
He plays in the national league for basketball.
Ele joga na liga nacional de basquete.