Sooooo... new sports add on I've just recently discovered. It's called Pro Sport. Right now it's just for NFL, NHL, and NBA. But the content is incredible. It provides live streams for each, as well as an archive feature that will drop your jaw. Flipping through the archive, they have almost every game for the entire NFL season available for streaming. I didn't check all the links, but all the Chiefs games for the year are working in 720p.
This one's legit guys. Who knows how long it will work like this, because it seems like a lot of work. But it's pretty awesome right now.
Here's how to get it. It's a manual process and not widely discussed, but that's a good thing in this case.
First, install Fusion in KODI:
https://www.tvaddons.ag/fusion-installer-kodi/
Once that's installed, Go to System\Add-ons\Install from zip file.
Click on Fusion in the list of options.
Click on xbmc-repos.
Click on English.
Install repository.podgod-1.7.zip.
Once installed, click on Install from repository.
Select podgod repo.
Video add-ons.
Click on Pro Sport.
Enjoy.