Tyler Walker came off the bench to head Nottingham Forest into the third round of the Carabao Cup with a 3-2 extra-time victory at Premier League side Newcastle.
The substitute struck from close range eight minutes into the extra half-hour to settle a topsy-turvy tie which will have done little to quell unrest on Tyneside.
Aleksandar Mitrovic had fired Rafael Benitez's still winless men in front, but it took a fine strike by Rolando Aarons to level after Jason Cummings' quick-fire double.
Last season's runners-up are out of the Carabao Cup as Southampton were stunned 2-0 at home by Championship side Wolves.