Hit harder and swing faster, that's the key to a powerful forehand, right? Tennis instructor Jim McLennan says these suggestions aren't necessarily the key to obtaining more power behind the shot. 

Instead, he believes engaging your non-dominant arm in the action can give players the weight behind the forehand they are searching for. McLennan offers an easy one/two swivel that allows all your weight to be transferred into the ball, creating a heavier ball and better rhythm.