"I believe that we can still qualify for the knockout stages. We are not out of this competition, our next game is away to the Angolan side (against Lunda Sul), is a cup final for us," Barker told the media after the match.
"We have to get points from them in our back-to-back games against them and the Malian team back at home, I believe that's our opportunity to get points. If we have to go away and get a point or three against this team, it is not impossible.
"When one gets into this level of playing these types of level teams, I think the important part is that we keep learning and growing," explained the former AmaZulu tactician.
"I didn't take Mamelodi Sundowns their first season to go far in this competition, they started by gaining experience and then were able to compete. We've got to consider this a great and challenging experience for us," he added.
"I feel like we showed a lack of experience, maybe a little bit of dealing with a lot of situations in the final third, for me it is about judging how far we are from being at that level. There is a way that we have to grow and get there. A massive learning curve I thought we have done ourselves by showing character."