As football coaches keep players ready through the season, they work to perfect tackles, improve running games and make sure everyone knows all the plays by heart.
원문출처 : http://www.cnn.com/2017/11/23/health/nfl-football-mindfulness/index.html
원문출처 : http://www.cnn.com/2017/11/23/health/nfl-football-mindfulness/index.html