Ronald Zubar's late volley spared Wolves' blushes as they came from behind to earn a replay at Crystal Palace after a 2-2 draw at Molineux.
The right-back displayed the poise and precision of a world-class striker to smash home a late leveller and salvage a draw for the below-par hosts.
Darren Ambrose's free-kick at the start of the second half had looked to be enough for the Championship outfit, who are 11 places below Wolves in the football pyramid.
Alan Lee had earlier handed the Eagles a dream start after just two minutes when he headed home Ambrose's corner but David Jones ensured the scores were level at the break.
Overall the result was a fair reflection of a stop-start encounter and the replay will take place on Tuesday 2 February.