Shortest Sunderland careers

Let’s chill about the takeover and get the brain working on this thirsty Thursday.. I will start with 3 short careers I can recall..
Nigel Walker.. ex mag 7-8 mins as a sub v Watford 1983 then never seen again
Alan Hay left back on loan from York iirc 1989 1 game
Jamie Murray on loan from Cambridge v Spurs 1984 injured dead early in the game.
Get the grey matter going people.