No one has his eye more on the tennis ball than Murphy Jensen, former Tennis Channel star and coach of the Washington Kastles professional tennis team -- of which Serena and Vanessa Williams are members.
Here are some of his tennis-playing pointers:
* Play with a resistance band
Before getting their rackets swinging, Kastles players warm up by doing the same movements using resistance bands. "Put one end under your foot and pull it around with your arm. Just have fun with it," says Jensen, who recommends repeating this process after you play to help with recovery. The bands allow you to perform traditional exercises, such as biceps curls and triceps kickbacks, as well as common tennis moves, so you can practice serving or nabbing a high volley.