Great servers have realized that power and pace are not the end-all and be-all, and that their killer shots must be backed up with a solid return game.

I know that I play better when I play more tennis so I was like ... Second and third set I couldn't touch the ball. Full power, everything in - I didn't know what to do. 'He plays like this ...

"I know that I play better when I play more tennis so I was like ... "Second and third set I couldn't touch the ball. Full power, everything in -- I didn't know what to do.

"I know that I play better when I play more tennis so I was like ... "Second and third set I couldn't touch the ball. Full power, everything in -- I didn't know what to do.

Photograph: Francis Mascarenhas/Reuters "I know that I play better when I play more tennis so I was like ... "Second and third set I couldn't touch the ball. Full power, everything in -- I ...

“I know that I play better when I play more tennis so I was like ... “Second and third set I couldn’t touch the ball. Full power, everything in — I didn’t know what to do.

“I know that I play better when I play more tennis so I was like, ‘Why play one-hour-30 (minutes), minimum three hours to feel my shots better,” joked last year’s finalist. “Second and third set I ...

If you're a serious tennis player and you plan on playing three or four days a week, the Penn Championship tennis ball is an ...

Aryna Sabalenka has joined Carlos Alcaraz in commenting on the wear and tear of tennis balls. The World No. 1 has had a ...