No purchase or wireless device necessary to enter or win. This Challenge is open to persons who are: (a) Registered Users; (b) legal residents of the United States (for purposes of clarity, Puerto Rico and all US territories and possessions are expressly excluded); (c) at least twenty-one (21) years of age or older at the date of registration in the Challenge. Data rates may apply. The Challenge begins on August 11, 2020 and ends at the conclusion of the last NFL game played on January 3, 2021. Void where prohibited by law. See Official Rules for details.