Serena Williams and Maria Sharapova surprised tennis fans on Saturday when Williams walked out to introduce Sharapova into the International Tennis Hall of Fame. The two tennis stars shared a long rivalry that Williams described Saturday as “so electric and so iconic.”

SERENA WILLIAMS had a touching moment with arch rival Maria Sharapova as she inducted her into the tennis Hall of Fame. The two tennis icons battled on the court for much of their careers and were

Maria Sharapova was inducted into the Tennis Hall of Fame in Newport, R.I., on Saturday, Aug. 23. Sharapova amassed a 645-171 record during her career and won 36 singles titles. She's earned close to $39 million. The Russian started her professional career at the age of 14 in 2001, just a few years shy of her epic rivalry with Serena Williams.