Oh, Wow; WATCH What Happens When Kaepernick Refuses To Stand AGAIN

As promised, San Francisco 49ers quarterback Colin Kaepernick refused to stand for the National Anthem, and this time it was during "Military Night" in San Diego. As a black Navy singer sang, Kaepernick, along with teammate Eric Reid, chose to take a knee instead in protest. Watch how the crowd reacted:

At multiple points in the pre-game program, the crowd booed and heckled Kaepernick.

One fan commented on Kaepernick's action, saying, “It’s extremely disrespectful. He shouldn’t be playing football if he can’t stand up for his country and support the men and women who put their lives on the line for you.”

Another fan, Justin Frankfather, added, “You have a right, but I don’t think it’s the right right. I think it’s wrong; it’s just respect.”

According to USA Today, a Seattle Seahawks' Jeremy Lane joined the protest by sitting down during the singing of the anthem before a game against the Oakland Raiders.

"It's something I plan to keep on doing until justice is being served," Lane said.

Yesterday, a photo surface of Kaepernick also protesting by wearing socks with white police officers depicted as pigs. He claimed he was only protesting "rogue cops," not all police, with the symbol.

Watch the full report of the crowd's reaction and Kaepernick's defense of his actions: