Did you visit FIBA.com recently and did you check what is written on the top of the website?
Welcome to FIBA.basketball
The most important Basketball organization worldwide seems to be changing to a new domain name. The FIBA is about Basketball, nothing else, so it came naturally to changing its domain name to one with more precision.
Showing the way
Many other sports have their own domain name extension: ".rugby", ".tennis", ".baseball", ".football" and many more. Is the FIBA showing the way...to other sports?
Oh...and excellent promotion for new gTLDs :-)