Mark Cuban of the Dallas Mavericks took Sunday off in Dallas to protest racial injustice. The Mavs owner was joined by players Justin Jackson, Dwight Powell, Maxi Kleber, and Jalen Brunson.

Cuban was also flanked by a Dallas City Council Member as protestors gathered in front of Dallas Police Department headquarters.

Protests have been organized in major cities all around the country in the wake of George Floyd's death on Monday in Minneapolis. Floyd died in police custody after an officer knelt on his neck for nine minutes, ignoring Floyd's complaints of being unable to breathe.

Sunday marked another day of demonstrations in Dallas, with Gov. Greg Abbott declaring a “state of disaster” in the state of Texas (via the Dallas Morning News):

Dallas faced its third straight day of demonstrations over police killings of black people, a day after nearly 90 people were arrested in protests that stretched from Saturday night into Sunday morning.

Rallies were underway simultaneously Sunday, including a gathering at the Dallas County jail to demand the release of protestors and solemn vigils to pray and mourn for black Americans who have died.

Gov. Greg Abbott declared a state of disaster Sunday afternoon for all counties in Texas in response to ongoing protests. The declaration allows federal law enforcement to work as Texas peace officers, a move that Abbott said “will help protect people’s safety while ensuring that peaceful protesters can continue to make their voices heard.”

Cuban himself has faced claims of discrimination, albeit in a different capacity.

The NBA conducted an independent investigation of the Mavs in 2018, finding significant wrongdoing in the workplace culture and, in particular, the mistreatment of female employees. As a result, Cuban contributed $10 million to a number of organizations and instituted workplace training.

But Cuban joined his own players on Sunday afternoon, with the hopes of facilitating real change and making progress in ending racial discrimination and injustice.