5:50 PM ET

According to sources, Adrian and Le'Veon Bell have signed contracts to fight on July 30 in Los Angeles.

Both former All-Pro running backs will be competing in a boxing ring for the first time, but since it's an exhibition, the fight won't be official.

Athletes and social media stars are crossing over into boxing.

Frank Gore, an All- Pro running back, fought NBA All-Star Deron Williams in an exhibition on the December undercard of Jake Paul-Tyron Woodley 2. Gore made his pro debut in the fourth round.

On the undercard of Social Gloves 2, there will be a meeting between Peterson and Bell. The main event will feature McBroom and AnEsonGib. The undercard will feature a fight between Blueface andNick Young.

He is fifth on the career rushing yards list.

He played in four games last season for the Tennessee and Seattle teams. He said he will retire as a member of the Vikings.

Bell is a free agent as well. He played in five games with the Ravens and three with the Bucs. He was a member of the Pittsburgh Steelers.