$13 million in endorsements. Serena’s breakdown: Serena’s breakdown: Serena’s breakdown: Serena Williams "Serena Williams" Serena Williams Serena’s breakdown: reported net worth of $22 million No. 56 Williams cut back her endorsements Serena Williams $13 million in endorsements. "Serena Williams" Serena Williams Forbes.com http://www.forbes.com/profile/serena-williams/ http://www.forbes.com/profile/serena-williams/ "Serena Williams"