Al-Nassr suffered a blow to their Saudi Pro League (SPL) title hopes on Sunday as they slumped to a disappointing 3-1 defeat against Al-Qadsiah.
Al-Hilal can close the gap to the league leaders to just two points with victory against Al Khaleej on Tuesday.
With the two Saudi giants set to meet each other in a potential title decider on May 12, the Blue Waves now effectively control their own destiny.
Al-Nassr headed into Sunday’s away fixture on the back of 16 league wins on the bounce.
However, they were stunned in the 24th minute when Mohammed Abu-Shamat delivered a breakthrough with an excellent finish.
Cristiano Ronaldo tried to bring his side back in the game, but his curling strike came off the crossbar.
Joao levelled the scores before the break, capitalising on a defensive mistake to score his 17th league goal this season.
Musab Al-Juwayr put his side back in front early in the second half before Julian Quinones punished another defensive error to wrap up a 3-1 victory at the Prince Saud bin Jalawi Stadium.
Ronaldo has been impressive this season, scoring 25 goals in 27 SPL games. However, his hopes of winning silverware is in jeopardy once again.
Although Al-Nassr are currently five points clear at the top of the league standings, Al-Hilal will be crowned champions if they win their remaining four matches.
