Racing champion Lewis Hamilton has slammed Formula One drivers for refusing to speak out following the controversial death of George Floyd.
"I see those of you who are staying silent, some of you the biggest of stars yet you stay silent in the midst of injustice," wrote the Mercedes driver.
"Not a sign from anybody in my industry which of course is a white dominated sport. I’m one of the only people of colour there yet I stand alone.
In a second post, Hamilton added: "I do not stand with those looting and burning buildings but those who are protesting peacefully. There can be no peace until our so called leaders make change."
The death of the unarmed African-American by a police officer in Minneapolis has triggered a wave of outrage and violent protests in the US.
Meanwhile, basketball great Michael Jordan said his heart went out to the family of Floyd and others who have died through acts of racism.
"I am deeply saddened, truly pained and plain angry," he said in a statement. "I see and feel everyone's pain, outrage and frustration.
"I stand with those who are calling out the ingrained racism and violence toward people of color in our country. We have had enough."
An 83rd-minute Weverton own goal from a deflected Malo Gusto cross gave Chelsea a nervy 2-1 win over a spirited Palmeiras side in the Club World Cup quarter-finals on Friday.
Women's top seed Aryna Sabalenka fought off inspired home favourite Emma Raducanu in a cauldron-like Centre Court atmosphere to keep her Wimbledon quest on track but it was the end of the road for two other Grand Slam champions on Friday.
India finished day three of the second test on 64-1 to lead England by 244 runs after they dismissed the hosts for 407 in the first innings at Edgbaston on Friday despite Jamie Smith's commanding and unbeaten knock of 184.
There were to be no Fourth of July celebrations for American Madison Keys as she joined the exodus of seeds from Wimbledon with a 6-3 6-3 defeat by 104th-ranked German Laura Siegemund in the third round on Friday.
Prime Minister Luis Montenegro joined members of Diogo Jota’s family for a private wake on Friday in the Liverpool footballer’s hometown in northern Portugal following his death alongside his brother Andre Silva in a car crash in Spain.