In that match, the Al Ain striker hit the crossbar in the last minute of extra time, and the Black Stars went on to lose the ensuing penalty shoot-out.
According to Gyan, he still cannot put that dark episode behind him.
“Honestly, it has been haunting me since then. I think about it in my quiet moments and I just cannot forget it. I always ask if there will be another opportunity like this for me again. It really hurts,” Citifmonline quotes the in-form forward.
“I say that these things happen in life so I must move on. I have become a better person through that and it will help me at the upcoming World Cup.”
Gyan said it would require hard work to survive the group stage at Brazil 2014.
He said: “I have grown over the course of two World Cups and I am ready to share what I have learned in my time with those coming up. 2006 saw a young me but now, I have matured and as captain, I urge the players to get ready for the biggest footballing competition.
“We are going as a team and what will take us far will be our performance so we must be focused and qualify from the group.”
Ghana are in Group G, alongside US, Germany and Portugal.