Chris Evert: Is Serena Williams burnt out?Tennis icon Chris Evert believes that Serena Williams is starting to burn out after such a long, decorated careerSI Staff|Share on FacebookShare on XAdd us on Tennis icon Chris Evert believes that Serena Williams is starting to burn out after such a long, decorated careerPublished Jan 9, 2017 | Modified Jan 9, 2017SI STAFFShare on FacebookShare on XHome/Tennis