TD Ameritrade has become a sponsor of the National Football League (NFL).

The online brokerage has agreed a three-year deal with the NFL, beginning with the new 2014 season and running to the end the 2016 season. It intends to use the partnership to promote its services to a wider audience but expects to release further details as they are finalised. No financial terms were released.

"Every day our goal is to instill confidence into millions of American investors by breaking down barriers that stand between our clients and their financial goals," said TD Ameritrade chief marketing officer Denise Karkos. "Through sponsorship of the country’s favourite sports league, we have a unique opportunity to share our message of financial empowerment through education to a large, diverse, highly engaged and passionate audience."

Renie Anderson, the NFL senior vice president of sponsorship and partnership management, added: "We are pleased to welcome TD Ameritrade to our family of sponsors. We look forward to working with them to develop unique programs for our fans and players."

The 2014 NFL season kicked off on Thursday at Century Link Field, where champions Seattle Seahawks beat the visiting Green Bay Packers 36-16.