Eyespy I really think yours is the Inner Steering Tie bar, this causes the play when you grab the wheel.
Basically you have one wheel which will flop around when driving, may be fairly quiet on a flat road cruising but go over a road at a slower speed with uneven surface and you will hear knocking?
Jack the car up at the front and get a friend to hold the wheel at 3 and 9 Oclock while you hold the tie bar from the steering rack, this will confirm if i'm right or wrong.
You should feel the knock from the worn ball joint of the tie bar attached to the steering rack.
Let me know either way.