Pong game AI

[wild8900]

Ok, so I am making a mini pong arcade game. Currently the ball bounces off walls and players and restarts when it goes behind the player- basic pong concept; but the enemy AI is too simple,
if the ball's y is less than its, it moves down and well, you know.

How would I make the enemy predict and possibly be wrong where the ball will be?

by the way, the ball doesnt use a direction to move, I have numbers being added or subtracted from the x and y of the ball.