NORMAN, Okla. — College athletes across the country added their voices to those calling for an end to racial injustice riday with football players and others marching on campus or stepping away from practices to protest the police shooting of Jacob Blake in Wisconsin.

In Oklahoma, the Sooners football team walked in rows of three to the Unity Garden, where they held a 57-second moment of silence in honor of the 57-year anniversary of the March on Washington and Dr. Martin Luther King, Jr.’s “I Have a Dream” speech. Assistant coach Dennis Simmons led a prayer before the team returned to its facilities.

“The problems out there are real,” said Oklahoma coach Lincoln Riley, who led the march and spoke at the event. “As we talk, as we discuss, we can’t come up with a better solution than unity. I just don’t know how you have unity and not include yourself and every part of your program in that. So it’s a way for us to show that.”

Duke athletes gathered on campus Thursday with hundreds of Blue Devils staff, students and coaches in support of the Black Lives Matter movement.

“All the social unrest and the difficulties that we face day-to-day living this day and time – you’re working with young people, and you want them to feel hope for the future and excited,” Duke football coach David Cutcliffe said. “This shouldn’t be a troubling time for college-age persons.”

Members of the Baylor football team marched around campus Friday.

The Ole Miss football team decided not to take to the practice field Friday after a similar demonstration a day earlier at Mississippi State.

Ole Miss players marched from the campus to the Oxford Square.

“As the Ole Miss football family, we are committed to change,” the players said in a statement distributed by the university. “Police brutality and other injustices occurring across our nation have to end, and our team stands united to embrace our diversity and promote a culture of peace, equality and understanding. Regardless of our backgrounds, we all need to listen to each other and learn to respect and love our differences.”

On Thursday, Mississippi State went to Unity Park in Starkville instead of practicing.

“Black, brown, blue, whatever, it doesn’t matter,” senior defensive end and Starkville native Kobe Jones said as players prepared to disperse. “We love you all.”

College football joined other boycotts as the NBA saw teams sit out Wednesday and Thursday, not playing their scheduled playoff games. Major League Baseball also had teams do the same as did the National Hockey League. Some NFL teams opted to not practice.

Tennessee athletes planned a march Saturday. Football coach Jeremy Pruitt moved practice so his players could attend.

Tennessee left guard Trey Smith, a preseason All-American, has been sharing information about the march on social media. He said Vols athletes “are calling attention to institutionalized racism, as well as demanding that our school commits to taking action to combat it on their own campus.”

“We’re going to use our platform to help create change and be at the forefront of it,” Pruitt said. “Our players believe in it, our staff believes in it, our administration believes in it. So we’re going to continue to support them in this movement, and it’s something that we’ll continue for years to come.”

South Carolina women’s basketball coach Dawn Staley said change is long overdue.

“It’s like a disease,” she said. “It’s another pandemic that’s been happening for 400 years and we haven’t unearthed the vaccine for it. But we shouldn’t stop (trying).”

Blake, who is Black, was shot in the back by police last weekend in Kenosha, Wisconsin. The incident has spurred protests around the nation and professional sports leagues across North America postponed games in response.

Riley met with his team Thursday and they decided to do something. He said that as a white man, he was surprised to hear some of the stories from his players about racism they have faced. He feels he has no choice now but to act and help others do the same.

“It’s not going to change overnight,” he said. “It’s about taking positive steps and keeping the faith and let’s don’t let this be a thing that divides us even further. Why can’t this be the thing that brings us all even more together?”

AP Sports Writers Teresa Walker, Aaron Beard and Pete Iacobelli contributed to this report.