Watch: National anthem singer at Falcons-Lions game takes a knee on word 'brave'

Members of the Detroit Lions lock arms or kneel at Sunday's game against the Atlanta Falcons. (Raj Mehta-USA Today Sports)

Protests rippling across the NFL on Sunday weren't limited to owners and players taking a knee or locking arms.

Rico LaVelle, a Detroit artist who sang the national anthem ahead of the Lions’ game against the Atlanta Falcons, took a knee as he sang the word "brave" and raised his fist at the song's conclusion.

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His move came as more than 100 players around the NFL used Sunday's games to take a knee, lock arms or simply remain in the locker room to avoid the national anthem altogether.

The events on Sunday, in solidarity with Colin Kaepernick's protest against police treatment of African-Americans, were also partly a reaction to President Donald Trump's tweets and comments at an Alabama rally calling for NFL owners to fire players that take a knee during the anthem.