With the United States facing one of its biggest crises in more than 50 years, sports leagues and stars took to social media Tuesday with black screens - under the hashtag #BlackoutTuesday.

LeBron James and Steph Curry were front and center among NBA stars.

In addition to the league itself, several NBA teams tweeted out the item, as did teams in leagues across the sports spectrum and around the world.

In the NFL, New York Jets running back Le'Veon Bell and Philadelphia Eagles tight end Zach Ertz were among the star players making their voices heard.

New York Mets pitcher Marcus Stroman chimed in, among other baseball stars.

In the NHL, Toronto Maple Leafs star forward Mitch Marner made his feelings known.

Protests in response to the police killing of Minnesota resident George Floyd have also spread to Europe. From across the Atlantic, Manchester City striker Sergio Aguero voiced his support.

Others from the soccer world included Real Madrid star Gareth Bale, Paris Saint-Germain's Kylian Mbappe, and Jozy Altidore of Toronto FC and the U.S. men's national team.

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