Roger Goodell commented on Colin Kaepernick and his decision to protest the United States' treatment of minorities during the national anthem before games.

Goodell said in an email Wednesday: "I don't necessarily agree with what he is doing."

"I support our players when they want to see change in society, and we don't live in a perfect society," Goodell added. "On the other hand, we believe very strongly in patriotism in the NFL. I personally believe very strongly in that."

Goodell's late father, Charles Goodell, was a U.S. senator.

"We have to choose respectful ways of doing that so that we can achieve the outcomes we ultimately want and do it with the values and ideals that make our country great," said Goodell.

"I think it's important to have respect for our country, for our flag, for the people who make our country better; for law enforcement; and for our military who are out fighting for our freedoms and our ideals."