1.   A faster bat means a harder hit ball.

2.   Givens said Richardson throws a harder ball than Carlson and has more of a go-deep mentality.

3.   Graf and Seles hit the ball harder than anyone could remember.

4.   He has good life and throws the ball harder than you would anticipate.

5.   None of the three main companies make the harder ball, which is viewed as less commercially viable.

6.   Sandy also had him throwing a harder breaking ball today.

7.   Versions of the harder ball have been used by pros in recent years to make clay-court tennis more attractive.

8.   And both players seemed to hit the ball harder than they did two decades ago.

9.   And they hit the ball harder than ever, almost as hard as the men.

10.   Last year, a mediocre serve would be helped out by a harder ball.