MapInfo Pro users can use the Global Geocoder in MapInfo Pro to Geocode the NFL stadium addresses and get mappable coordinates of each NFL Teams on a map.
See Attachment
Within MapInfo Pro 16 or higher Click on > Pro > Geocoding and Sign up for a MapInfo Pro Geocoding Account :
http://www.pitneybowes.com/us/location-intelligence/geographic-information-systems/mapinfo-pro/commerce-cloud-credits.html
Open up your table of addresses and make table Mappable.
Click on Spatial > Geocode Using Server > Using the Global Geocoding Service. and select the prompts to geocode the addresses. Once Geocoded you can show the locations on the Map!.