Manchester United team-mates Marcus Rashford and Paul Pogba have sent powerful anti-racism messages sparked by the death of George Floyd in Minneapolis.
Mr Floyd died last Monday after a white police officer held him down by pressing a knee into his neck and sports stars have joined in the widespread condemnation.
England forward Rashford said: "I know you guys haven't heard from me in a few days. I've been trying to process what is going on in the world.
"At a time I've been asking people to come together, work together and be united, we appear to me more divided than ever. People are hurting and people need answers.
"Black lives matter. Black culture matters. Black communities matter. We matter."
United colleague Pogba also joined the calls and revealed his sadness on his Instagram account.
He wrote: "During the past few days I have thought a lot about how to express my feelings about what happened in Minneapolis. I felt anger, pity, hatred, indignation, pain, sadness.
"Sadness for George and for all black people who suffer from racism EVERY DAY!
"Whether in football, at work, at school, ANYWHERE! This has to stop, once and for all! Not tomorrow or the next day, it has to end TODAY!
"Violent acts of racism can no longer be tolerated. I can't tolerate. I won't tolerate. WE WON'T TOLERATE. Racism is ignorance. LOVE is intelligence."
Liverpool's players, including captain Jordan Henderson and Virgil Van Dijk, tweeted messages with an image of the players taking a knee during training at Anfield.
Rashford has followed his England team-mate Jadon Sancho in addressing the issue after the Borussia Dortmund winger said "we shouldn't fear speaking out for what's right".
'Justice for George Floyd' was scrawled on the T-shirt revealed by the Borussia Dortmund winger after scoring the first of what proved to be his maiden senior hat-trick in a 6-1 win over Paderborn.
Ferrari driver Charles Leclerc also gave his opinion after Lewis Hamilton appeared to criticise those in his industry who had chosen not to speak out.
Five-time World Champion Hamilton posted on Instagram "I'm one of the only people of colour and yet I stand alone".
Leclerc responded by writing on Twitter: "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. And I was completely wrong.
"I still struggle to find the words to describe the atrocity of some videos I've seen on Internet. Racism needs to be met with actions, not silence. Please be actively participating, engaging and encouraging others to spread awareness.
"It is our responsibilities to speak out against injustice. Don't be silent. I stand #BlackLivesMatters."