Adam Matthews hopes to show his Celtic team-mates in the Scotland squad that Wales are a better side than their opening World Cup results suggest.
The Welsh lost 2-0 at home to Belgium and were hammered 6-1 in Serbia ahead of Scotland's visit next month.
"We are quietly confident we can give them a good game and hopefully get the win," said the full-back.
"We have a good team. We didn't show it against Serbia, which was an unacceptable performance."
Winger James Forrest is likely to be in the Scotland squad, as is captain Scott Brown, while midfielder Kris Commons will also be hoping for a recall.
Scotland drew both their opening games at Hampden, against the Serbs and Macedonia, and a defeat by either side in Cardiff could effectively end their qualification hopes.
"Obviously I want them to do well for Brownie and James, but I am hoping Wales qualify before them," said Matthews.
"It is going to be an exciting game for both sets of fans and I am excited about it.
Matthews could be up against Brown and Forrest in Cardiff
"I'm sure, as it gets closer, I will get a few comments from Brownie and James, so there will be good banter in the dressing-room.
"Against Belgium with 10 men, we showed what we can do and were unlucky in the end."
Matthews is also hoping to silence his teasing team-mates in the Celtic dressing-room by breaking his scoring duck with the Glasgow club.
The 20-year-old former Cardiff City defender has yet to find the net since signing in the summer of 2011.
He was mostly recently denied his first goal by a fine save from Raith Rovers goalkeeper David McGurn during a 4-1 Scottish Communities League Cup third-round win in midweek.
"I am starting to think it is never going to come," he admitted.
"But hopefully, if I keep hitting them as well as I did against Raith, one of them will go in and hopefully it will be quite soon because some of the boys are giving me a bit of hassle about it.
"This season, I have had more opportunities to score, which I am happy with.
"I am getting in the positions to have a chance, so hopefully I can take one of them and then get a couple more."