https://www.cnbc.com/2019/01/04/nfl-launches-voice-powered-football-guide-for-amazon-alexa.html

The National Football League (NFL) has launched voice-recognition content for Amazon's virtual assistant Alexa that will teach fans about players, rules and the history of American football.

Rolled out on Thursday, "The Rookie's Guide to the NFL" will allow users to ask Alexa-enabled devices questions about the sport. The Alexa skill – a downloadable add-on – is available for free in all of Alexa's English language regions. It can tell users about the technicalities of the game and define more than 1,000 NFL terms, rules and jargon such as "encroachment" and "snap count."