The Phoenix Sun's partnered with an obscure environmental start up named Footprint, even renamed the arena, the Footprint Center. I wonder if it is a money laundering scheme or maybe the Sun's traded naming rights and promotion for equity.
https://mmajunkie.usatoday.com/2014/01/so-what-is-a-dynamic-...
This is mostly city politics with some money coming back 9 million a year). The city gets some money, some progressive branding to be used during elections, support for local jobs and probably has some personal connections attached.