Doing some more digging it's probably this game: 14.01.76 League Cup Semi-Final first leg. 1-0
Spurs grabbed the initiative at the half-way stage of this League Cup semi-final after the first leg 1-0 win.
A single strike from John Pratt gave Tottenham the win, but an inspired display in goal from Pat Jennings kept Newcastle at bay as they pushed forward to gain an equaliser. Referee Clive Thomas played a good advantage when defender Geoff Nulty stopped John Duncan's header from Terry Naylor's cross from going in with his arm. The match official let play continue and Pratt seized the loose ball to crack home a fierce shot.
The last half hour was a backs-to-the-wall effort by Tottenham, as Newcastle pushed for an equaliser, but Jennings saved everything which was thrown at him, producing a stunning save from a drive from Tommy Craig which saw him arch backward to punch the dipping shot away for a corner.
Spurs - Jennings, McAllister, Naylor, Osgood, Young, Perryman (c), Coates, Neighbour, Pratt, Chivers, Duncan.
Unused Sub. : -
Newcastle United - Mick Mahoney, Irving Nattrass, Pat Howard, Glenn Keeley, Alan Kennedy, Tommy Craig, Geoff Nulty, Alan Gowling, Micky Burns, Malcolm MacDonald
Unused Sub. : -
Ref : - Clive Thomas (Treorchy)
Crowd : - 40,215
Goal time
First goal – 31m 33s