Lee, who last year led the Lions to historic Asian Cup qualification, said he hoped the team would grow in belief. “If we don’t believe in ourselves, then no one would really,” he added.
Mahler said: “Belief is something that we need a lot more of. When we go into games, we need to believe in our capabilities.
“Going unbeaten is not something easy, right? I think we put in a lot of effort to do this, and it just shows that we can do this.”
A NATIONAL TEAM TO BE PROUD OF
Speaking to reporters after the game, Indonesia coach John Herdman said: “I thought we dominated the game, I thought we were on top.
“Fair play to Singapore, they had great resilience, they were well organised, but we had enough chances to win that game.
“We had enough possession, enough control, and sometimes just the football gods aren’t going to give you what you want.”
Singapore will face the winners of Group B, which comprises Thailand, Malaysia, the Philippines, Myanmar and Laos.
With the final round of group games on Saturday, Thailand are currently top of the group with nine points.