The suit claims "acts of violence against a young man and woman" as well as "physical assault, bullying and misleading statements by Mr. Green".
A statement from The Bloom Firm refers to a man and woman, presumed by Spears to be Edmondson and his girlfriend, who allege "assault, battery and related claims" against Green. ABC News reported Monday a news conference is scheduled for Tuesday in Woodland Hills, California.
According to the press release, the man and woman will speak for the first time Tuesday alongside their attorney, Lisa Bloom.
Green was accused of slapping the Spartan after they got into an argument.
Green has had off-court issues in the past.
Draymond, a current member of the Golden State Warriors, was charged with assault past year after he was accused of punching a football player in the face.
According to ESPN, Green in confident the lawsuit "will be resolved soon".
Green was arrested following the initial altercation, but was released on bail and agreed to a plea deal which brought the charges down from misdemeanor assault to a noise violation and a civil infraction.