After Liverpool players took a knee during training in a show of solidarity following the global outrage over George Floyd's death, NBA star LeBron James tweeted #YNWA -- a reference to the Premier League club's 'You'll Never Walk Alone' anthem.
As pictures of the Liverpool players' gesture went viral on social media the head of Kick It Out, a leading UK organization that works to tackle discrimination in professional and grassroots football, urged every Premier League player to take a knee once the season restarts later this month.
Floyd, a 46-year-old unarmed black man, died in Minneapolis on May 25 after being arrested by a white police officer who forcibly pinned him to the ground for several minutes by kneeling on his neck. His death has sparked widespread protests across the world in recent days.
On Monday, Kick it Out chairman Sanjay Bhandari told The Guardian players must be free to protest when the current campaign resumes on June 17.
'I would like to encourage the players to protest if they want to but I would also like to encourage them to do it in a way that doesn't expose them to unnecessary sanction,' Bhandari said.
'If they could do that by taking a knee, well if every player did that it would be quite a powerful message. I would be interested to hear what the authorities thought of that, whether it would constitute a breach of the rules. To me that is about demonstrating solidarity.'
The English Football Association said in a statement that it 'strongly condemns discrimination of any kind' and says that any protests on the pitch 'would be reviewed on a case by case basis with a common sense approach and understanding of their context.'
'The power of football can break down barriers across communities and we remain deeply committed to removing all forms of discrimination from across the game we all love,' it added.
The Premier League did not immediately respond to CNN's request for comment.
While Liverpool's squad took a knee during training on Monday, Manchester United stars Paul Pogba and Marcus Rashford also posted messages of solidarity on social media.
Bhandari's comments came on the same day that the German Football Federation (DFB) announced it was investigating protests made by Jadon Sancho, Achraf Hakimi, Weston McKennie and Marcus Thuram during Bundesliga matches over the weekend, a decision for which the federation has drawn criticism.
Over the weekend, Borussia Dortmund's Sancho received a yellow card for lifting up his shirt to reveal the message 'Justice for George Floyd' written underneath. Teammate Hakimi was not booked later in the game for making the same protest.
Schalke's Weston McKennie wore an armband with the slogan 'Justice for George,' while Marcus Thuram took a knee after scoring for Borussia Monchengladbach.
'I hope there will be a degree of leniency shown by the German authorities,' Bhandari said. 'I'm not sure how you can sanction Marcus Thuram. I don't think he's done anything wrong. He's just taken a knee. I wonder if that's the thing I would encourage if players want to protest.
'If you score a goal and take a knee could everyone do that? Not just the black players. The white players too -- everyone. I would urge all the authorities and all the clubs to show a degree of understanding. This is almost above politics. This is about right and wrong.
'This is someone who was killed on the streets by the police. This is about seeking justice for him and others like him. I don't see that as being political. That's human.'
The DFB said the yellow card given to Sancho had nothing to do with his message of solidarity.
'Referee Daniel Siebert followed the laws of the game here, specifically Law 12 (Fouls and Misconduct), which states that a player will be booked for unsporting behaviour if they remove their shirt or cover their head with their shirt after celebrating a goal,' said the DFB in a statement.
A spokesperson for FIFA, world football's governing body, says it 'fully understands the depth of sentiment and concerns expressed by many footballers in light of the tragic circumstances of the George Floyd case' and has urged competition organizers to 'use common sense' when considering possible sanctions for player protests.
'I think the players understand that if they take the shirt off they're going to get booked,' Bhandari says. 'Everything is contextual and in this context I think it would be very harsh for a punishment to go beyond that. I'm not sure how something like taking a knee could expose you.
'Every player should do it. It should be teams doing it. You saw the Erling Haaland celebration after the first game back where all the Borussia Dortmund players did the social-distancing celebration. They could all take a knee. Racism's not about black players or brown fans. It's about all of us.
'Racism corrodes society and we're all hurt by it. Everyone should want to demonstrate their solidarity and disgust.'
F1 drivers speak out
After Lewis Hamilton criticized the world of Formula One for staying 'silent in the midst of injustice,' several high-profile figures in the sport have spoken out in protest against Floyd's death.
The six-time world champion, currently the only black driver on the grid, said that there was 'not a sign from anybody in my industry which of course is a white dominated sport.'
Ferrari's Charles Leclerc and McLaren driver Lando Norris are two drivers who have since spoken out.
'To be completely honest, I felt out of place and uncomfortable sharing my thoughts on social media about the whole situation and this is why I haven't express myself earlier than today,' Leclarc wrote on Twitter. 'And I was completely wrong.
'I still struggle to find the words to describe the atrocity of some videos I've seen on [the] Internet. Racism needs to be met with actions, not silence. Please be actively participating, engaging and encouraging others to spread awareness.
'It is our responsabilities to speak out against injustice. Don't be silent. I stand [with] #BlackLivesMatters.'
Norris tweeted a link which provides people with information on Black Lives Matter and allows them to make donations.
Renault driver Daniel Ricciardo had spoken out before Hamilton's posts, saying the last few days had left him 'saddened.'
'What happened to George Floyd and what continues to happen in today's society is a disgrace,' the Australian wrote on Instagram. 'Now more than ever we need to stand together, unified together. Racism is toxic and needs to be addressed not with violence or silence but with unity and action.
'We need to stand up, we need to be a WE. Let's be better people.'