Serena's serving ACES

Serena has the best first and second serve in the history of women's tennis. She served the most aces during the 2009 tennis season (381). She has great disguise on that lethal serve of her's. A thing of beauty actually. She has a smooth service motion and always tosses the ball in the same spot. While others are serving double faults in double digits, Serena's serving aces.