United States president Donald Trump has criticised Megan Rapinoe for protesting during the national anthem at the Women's World Cup.
Rapinoe took a knee in 2016 to show solidarity with NFL quarterback Colin Kaepernick, who began kneeling during 'The Star-Spangled Banner' to highlight social inequality and the treatment of black men by the police in the United States.
"Being a gay American, I know what it means to look at the flag and not have it protect all of your liberties," she said at the time. "It was something small that I could do and something that I plan to keep doing in the future and hopefully spark some meaningful conversation around it.