After their one nil lost to Indonesia, the Singapore u23 Lions have crashed out of the SEA Games football competition.
After a goalless and lacklustre first half, Indonesia broke the deadlock with an unstoppable shot from Evan Dimas Darmono in the 47th minute.
Both teams increased the tempo and had chances gone begging at both ends.
To make matters worse for the hosts, Ho Wai Loon was sent off in the 64th minute for a second yellow card.
Indonesia will now play Thailand in the second semi-final on Saturday at 8.30pm.