Odion Ighalo was one of four goalscorers for Al Shabab as the team booked its passage to the semi-final of the Saudi King Cup on Sunday at the King Fahd International Stadium.
Ighalo, who was named in the starting XI, got his name on the score sheet against Damac.
It was a goalless first-half, but after 15 minutes following the resumption, the hosts were already 3 goals ahead.
Moteb Al-Harbi (50′) broke the deadlock before a Carlos double in the 57th and 60th minutes stretched the lead.
Then Odion Ighalo added a fourth in the 71st minute before Turki Al-Ammar wrapped up the goals with one of his in the 83rd minute.
However there was late drama following the sending off of Nawaf Al-Abed (89′), but it had very little consequence on the result of the game.
At this stage last season, Al-Shabab were knocked out of the competition by Al-Qadsiah.
