Serena Williams has teamed up with Allstate Foundation to bring attention to a problem that prevents women and men from leaving abusive relationships.
It's called financial abuse. That is when the abuser in a relationship has control over the money, making it impossible for their victim to leave the relationship.
The abuser usually won't allow the other person to have access to bank accounts or credit cards and may even prevent the person from getting a job.
The surprising part is that it happens to 99 percent of domestic violence victims.
The name of the campaign is Purple Rose.