Simplify the following text for a Grade 8 native English-speaking person.
Original: The National Basketball League , also known as the iiNet NBL Championship for sponsorship reasons , is the pre-eminent men 's professional basketball league in Australasia .
Simplified: The National Basketball League is a basketball competition in Australasia . It 's current sponsor is iiNet , so it is also known as the iiNet NBL Championship .