"In the first encounter, when we got the red card early in the game, it changed the whole complexion of the fixture," he said as quoted by Stellies media team.
"But Chiefs have shown this season that they have improved and that they are very competitive.
"They’ve got some really good individuals and a certain way that they are looking to play, so we are expecting nothing but a tough game," Barker added.
"It’s up to us to concentrate on what we can do and on what we’re good at.
"We’ve got to improve in certain areas, and we’ve been working hard on those in training, and hopefully, with it being a Cup game, we can take the opportunity to get into a quarter-final," the tactician concluded.