He may keep his hand on the ball while kicking it'.

But as you say keep an eye on the ball.

There was no choice, really, if I wanted to keep on the ball, to get ahead.

The result was that the players started to improve without a lot of effort because they were keeping their eye on the ball.

You keep your eye on the ball at all times.

It's your job to evaluate the stuff and keep him on the ball.

I have every incentive to keep my eyes on the ball.

He had to keep his eye on the ball here.

But we all need to keep our eye on the ball here.

Keep your eye on the ball, stay inside the bright white lines and hit hard.