Riyadh rivals Al-Nassr and Al-Hilal safely booked their spots in the round of 16 of the King’s Cup after away victories over lower-tier opposition on Monday night.
But while Al-Nassr cruised to a comfortable 5-1 win over Ohod, Al-Hilal struggled to overcome Al-Jabalain 1-0.
Al-Nassr, playing without the rested Cristiano Ronaldo, took the lead on 15 minutes through a penalty by Sadio Mane, but the home team responded with a fine chipped equalizer from Konrad Michalak deep into first-half stoppage time.
Second-half strikes from Seko Fofana (62 minutes), Talisca (75), Ayman Yahya (81) and Sami Al-Najei (86) saw the Yellows safely through to the next round.
In contrast, Al-Hilal could only manage a solitary goal from Reuben Neves on 64 minutes as they labored to beat stubborn first-division outfit Al-Jabalain.
Elsewhere on Monday night, there was shock as Saudi Pro League team Al-Raed were beaten by first-division Al-Najmah 2-1, while Damac progressed after a 2-1 victory over Al-Qaisumah.