The match is a six-pointer, and the golden rule is "never sell your best players to the opposition" - a club in the same position (fighting relegation or the title).
This move would be JUST that!
Either Shay moves with a clause saying he doesn't play against Newcastle, or he signs after the match.
But how could Newcastle possibly play him against a side he is just hours from joining?
So expect Steve Harper to make a rare appearance.