Steven Gerrard's Al-Ettifaq conceded an injury time goal to lose 2-1 to Al Fateh in the blockbuster fixture of the ninth round of the Saudi Pro League.
Former Trabzonspor striker Djaniny scored a 93rd minute goal as Slaven Bilic's side secured all the three points on Thursday night.
Al-Ettifaq, who are captained by former Liverpool skipper Jordan Henderson, had taken the lead midway through the second half thanks to a Moussa Dembele goal.
But the visitors first found an equaliser with just five minutes left through Lucas Zelarayan, before Djaniny sealed a late win deep into stoppage time.