On JEOPARDY tonight , the following question was asked
Question-When a batter hits the ball - he hopefully produces backspin on the ball.
>The backspin cause the air over the top of the ball to travel faster than the air under the ball<
The air on the underside then produces this.
Answer - lift-

I have never seen this wording to explain the pressure difference.
I guess I have led a sheltered life.