WATCH: Cristiano Ronaldo's reaction to Al Hilal Fans' chants of Messi goes viral

Cristiano Ronaldo's Al-Nassr suffered a 3-0 defeat against league leaders Al-Hilal in the Riyadh derby at the King Fahd International Stadium on Friday, further trailing their fierce rivals at the top of the Saudi Pro League standings.

The Portuguese had a goal disallowed for an alleged offside that wasn't reviewed by the VAR.

At the match's conclusion, Al Hilal supporters seized the moment and began chanting "Messi, Messi, Messi" as Ronaldo headed towards the tunnel en route to the locker room.

Sergej Milinkovic-Savic put the league leaders in the lead before Aleksandar Mitrovic's late brace secured a victory that propelled unbeaten Al-Hilal seven points clear of Al-Nassr at the summit after 15 games into the season.

Following a goalless first half, Saud Abdulhamid delivered a 64th-minute cross from the right for former Lazio midfielder Milinkovic-Savic to head in the opener, beating Nawaf Al-Aqidi low and to his right.

Mitrovic then nodded in the second goal with a minute remaining when he met Salem Al Dawsari's corner with a header.

Three minutes later, the Serbian forward completed the scoring by cutting inside Aymeric Laporte to shoot through Al-Aqidi's legs, marking his 13th goal of the season and narrowing the gap to two goals behind Ronaldo on the top scorers' chart.

The match concluded on a sour note for Al-Hilal as defender Ali Al-Bulayhi was sent off in injury time by Colombian referee Wilmar Roldan, despite Jorge Jesus' side securing their 13th win in 15 league games.

With this crucial victory, Al Hilal reached 41 points at the summit of the standings, while Al-Nassr held second place with 34 points.