A tennis backhand is a groundstroke in which the player’s arm crosses their body to swing at the ball, with the back of their palm moving towards their opponent. Its complimentary groundstroke, the tennis forehand, is its exact opposite. Two-handed backhands have become increasingly popular over the past twenty years or so, with more and more players opting for the backhand technique. Much of this has to do with the influence Serena WIlliams and her sister Venus Williams have