Sports teams started acquiring their own jets a long time ago. An older, heavily depreciated jet could make a relatively cheap investment which meant the limited usage for specialist purposes – i.e. moving a sports team to events – was viable compared to chartering a jet from an airline. You could also customize the interior. Older jets have been replaced by 767s and 777s with some NFL teams buying their own jets. I’m not sure how the ownership transitioned but some of these 777s have ended up being operated by Gridiron Air. They used to have more specific liveries but now they seem to have transitioned to a neutral paint job. Even so, a private 777 is a nice change so I got this one when it was bringing a team in for a game in Seattle. I wish I had seen it with something a bit more interesting on it though.