Chang has attributed his improved serving to the new racquet.

And he is using a new racquet, a custom-made wide-body model produced in Taiwan.

Sure enough, Jennifer's aunt writes to say that she did not send the new racquet.

There are far fewer rallies, and the players serve and hit harder because of the new racquets.

Once, we both thought differently- I went on the court with my new racquet and ball.

A new racquet might explain the added punch on her ground strokes and serve.

'The least he could do would be to offer you a new racquet.'

The new racquets are "game enhancement products," in tennis-industry language.

"Everybody likes to play with new racquets," he said.

None of these new racquets come close to the biggest racquet on the market, the Weed, which is 135 square inches.