Trump: 'Stand proudly for the anthem or be suspended without pay!'
SAUL LOEB / AFP / Getty

Protests during the national anthem continued into the first week of the NFL's preseason, and U.S. President Donald Trump took note.

Related: Protests continue in preseason; NFL reiterates no discipline amid anthem talks

Trump took to Twitter early on Friday morning to again demand that players "find another way to protest" during the national anthem "or be suspended without pay."

Miami Dolphins receivers Kenny Stills and Albert Wilson took a knee during the anthem on Thursday night, and members of the Jacksonville Jaguars and Seattle Seahawks elected to remain in the locker room during the playing of "The Star-Spangled Banner."

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Trump: 'Stand proudly for the anthem or be suspended without pay!'
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