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How can I be certain if a serve is long?

She won 59 Grand Slams during her decorated career, including her last at the age of 49.

Recounting the points can be tricky after a mistake in scoring. 

Moving up an age bracket? Here’s how to make a smooth and successful transition.

You can crowd that centerline as much as you want to.

Being a good sport is the right way to play but...

Dirt-ball is a war. For war, you need to be prepared.

Tennis is a serious mental challenge—but above all, you must stay in shape.

We’re playing tennis, not handball, right?

A wall can return the ball faster than any of your opponents. 

Three answers to questions that may help you get the strongest start.

Confidence in one's shots can make a huge difference during the crucible of a match.

Your fundamental shots can always be improved. 

For this four-time Grand Slam champion, competitiveness didn’t stop with retirement.