Irfan Bakti's men welcomed Johor Darul Takzim and convincingly beat them 4-1 to knock them off the top of the Malaysian Super League table.
Selangor began very positively, which was instantaneously rewarded with a goal from a stunning 4th minute cross-cum-lob from S. Kunanlan.
He was released down the left flank by Forkey Doe who had first done well to keep possession, and Kunanlan wasted no time to whip in a cross.
The cross surprisingly floated just over Darul Takzim goalkeeper Zamir Selamat who was slightly off-position, and into the goal near the far post to send the home fans into raptures.
The match then went on rather cautiously as Darul Takzim maintained their composure and most of the possession, while Selangor slowed down their tempo.
However despite having possession, the Southern Tigers failed to make inroad into the Selangor penalty box with any real chance.
The Red Giants were content to absorb the pressure and keep ball, and responded with threatening counter-attacks.
This cautious tactic bore fruit for Selangor when they scored a second time from a counter attack in the 32nd minute.
Mahali laid a pass to K. Soley who proceeded to send a low cross to Doe who then stabbed it home for their second goal.
However, Selangor’s tactic was not without its drawbacks, as they kept fouling Johor's forwards, resulting in an early booking for new import Peter Chrappan, who was making his home debut.
This booking would come back to haunt him in the second half, when he was booked a second time for bringing down a Johor player just outside the penalty box.
Selangor coach Irfan Bakti, however, refused to bring on a defender to shore up the backline and insisted on playing with only three defenders.
Mahali was pulled back to cover the hole left by Chrappan but refused to just perform defensive duties, and kept going up during attacks.
He found the net in an audacious fashion, by dribbling past three defenders, before releasing a shot into the far corner to make it three for the Red Giants.
Selangor, by then, looked as if they had completely forgotten that they were playing with only 10 men and it was proven by their fourth goal two minutes later.
Doe again held the ball near the left corner of Darul Takzim’s penalty box to draw two defenders in, before releasing the ball to the middle for the lightly-marked Amri Yahyah to calmly slot into the right corner.
The match then wound down, but not before Darul Takzim managed to sneak in a consolation goal in the 75th minute through a Nor Shahrul Idlan Talaha near-post shot which went in off a slight deflection from a Selangor defender.
Only then did the home team resort to delaying tactics to finish the game with all three points, and most definitely a whole lot of pride for having performed rather spectacularly.