By Gabriel Tan at the Jurong West Stadium
Substitute Iqbal Hussain scored the only goal of the game in the 60th minute when he clinically fired past Syazwan Buhari to grab all three points for the Bulls, and - in the process - pile more misery on his former club following last Friday's 2-0 loss to Balestier Khalsa.
To make matters worse for Robin Chitrakar's side, centre-back Sheikh Abdul Hadi was sent off 13 minutes from time for a second bookable offence, meaning he will now miss their next game against DPMM FC.
Having become only the fourth team to leave the Hassanal Bolkiah National Stadium with at least a point to show for their efforts after holding DPMM to a 1-1 draw last Friday, Gombak entered Tuesday's game high on confidence and it certainly showed as they started the brighter of the two sides.
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Two minutes into the game, they were unlucky not to take the lead when Julien Durand found space inside the area and curled one towards the top corner, only to see it come back off the post with Syazwan beaten all ends up.
But despite the confident start from the hosts, it was Young Lions who created the better openings early on. Jonathan Toto went on a blistering run down the left in the ninth minute, beating Walid Lounis for pace, before swinging in a cross that was just beyond the reach of the rampaging Benjamin Kristofferson Lee.
Four minutes later, it was the winger's turn to carve open the hosts' defence when he played a slide-rule pass from the edge of the area through to Faris Ramli, who decided against hitting a shot first-time and allowed Ismail Yunos to shut the door in his face.
While they were enjoying plenty of possession, Gombak were struggling to carve out any real opportunities until the 29th minute, when Christopher Anderson won possession on the halfway line and immediately slipped Durand through. Despite the close attentions of Hadi, the Frenchman managed to force his way into the box but could only fire just wide of the far post.
Nine minutes before the break, the Bulls had another half-chance when Hafiz Rahim found space inside the area and drilled in a shot that was deflected narrowly wide, after he had been picked out by a visionary 50-yard pass from Ismail.
Five minutes into the second half, Ismail was again involved when he charged out of defence all the way into the opposition area, only to smash one into the side-netting after Hafiz neatly laid the ball into his path.
And despite Gombak continuing to look the more likely to score, coach K. Balagumaran decided to bring on more firepower up front by introducing Iqbal and Jung Hee-bong for Mustaqim Manzur and the ineffective Samuel Benjamin.
Right on the hour mark, and just two minutes after coming on, Iqbal made an instant impact when he fired his side ahead by drilling a ferocious effort into the far corner, after Anderson had found him on the left-side of the box with a clever pass.
Two minutes later, it could have been 2-0 when Iqbal found space down the left once more and cut the ball back to the unmarked Durand, only to see his team-mate blaze over from 12 yards out.
The visitors' chances of salvaging something from the game then took a real blow in the 77th minute when Hadi received a second yellow for scything down Durand on the edge of the area, and his absence was immediately felt as the hosts began to win plenty of the ball in the final third.
Four minutes later, Jung was unlucky not to kill off the contest when he left fly from 20 yards with a ferocious strike that came smashing back off the crossbar, but Young Lions then mustered one final push for an unlikely equaliser and came close twice in the last five minutes.
First, Fazli Ayob broke down the left and played the ball back to the edge of the area, where Hafiz Abu Sujad met it with a sweet strike that sailed just wide, before Faritz Hameed went on an overlapping run down the other flank and drilled in a dangerous cross that was just scrambled away by the desperate Bulls' backline.
At the end of the day, Gombak had just done enough to warrant all three points and were left to celebrate a well-deserved victory as referee Leow Thiam Hoe blew the final whistle.
Gombak United: Zaiful Nizam, Ismail Yunos, Obadin Aikhena, Walid Lounis, Nurullah Hussein, Samuel Benjamin (Jung Hee-bong 46'), Adrian Dhanaraj (Fairoz Hasan 82'), Christopher Anderson, Mustaqim Manzur (Iqbal Hussain 58'), Hafiz Rahim, Julien Durand.
Courts Young Lions: Syazwan Buhari, Faritz Hameed, Emmeric Ong, Sheikh Abdul Hadi, Hafiz Abu Sujad, Shamil Sharif (Tajeli Salamant 80'), Zulfahmi Arifin, Nazrul Nazari (Fareez Farhan 82'), Benjamin Kristofferson Lee, Faris Ramli (Fazli Ayob 64'), Jonathan Toto.