South Africa were moments away from extra-time when a goalkeeping error from Ronwen Williams gifted Nigeria a late winner in Cairo.
Nigeria took a step closer to becoming Africa Cup of Nations champions after Ronwen Williams' late error gifted William Troost-Ekong a late winner in a 2-1 triumph over South Africa in Wednesdays' quarter-final.
Bafana Bafana, who shocked hosts Egypt in the previous round, had equalised with 19 minutes remaining in Cairo when Bongani Zungu headed home and the match was seemingly headed for extra-time.