Mrs. Lambert Chambers, Lawn Tennis for Ladies
“ Yet unless this rule is implicitly obeyed you cannot expect much success at lawn tennis. Taking your eye off the ball is the secret of every mis-hit and mis-timed stroke. You must not be content merely to look at the ball, but follow it right on to your racket; watch it up to the actual moment of striking. The court and the position of your opponent must be mentally engraved at the same time. How frequently attentive observation will reveal a player lifting his or her eye from the ball a fraction too soon! ”
