Wales defence coach Shaun Edwards feels a tough test awaits his team when they face Scotland at the Millennium Stadium in Cardiff on Saturday.
Scotland have lost their last eight Six Nations matches and last beat Wales in 2007, but Edwards is not underestimating Vern Cotter's charges.
"You're looking at a team (Scotland) that were one referring decision from being in the semi-finals of the World Cup," he told the Welsh Rugby Union's official website.
"We have a lot of respect for Scotland because they bring the best out of us because we know they can hurt us."
He added: "Each game is a different entity and previous one's mean nothing come kick-off time.
"Scotland's approach work last weekend was magnificent so we have think primarily about ourselves and how to stop that."
Wales are able to name an unchanged starting line-up for their first game at the Millennium Stadium after Dan Biggar recovered from injury, and Edwards said such continuity is welcomed.
"Everybody is fit, ready to go and tremendously excited, the roof will be closed and it shows that they want to come and play rugby as well so it makes for an exciting game," he said.
"I like to see running rugby and people making breaks just not against us!
"We're lucky that a large number of the players have been together for a few years now so Dan Lydiate or Gethin Jenkins coming in say is of no problem.
"It's the continuity of the squad that is beneficial for us as coaches, not just the starting fifteen."
Edwards also took the opportunity to praise the defensive work of Jamie Roberts, who made 21 tackles in the 16-16 draw with Ireland last Saturday, the most of anybody on either side.
"If you look at Jamie throughout the last year or two has seen being an aggressive defender, so him putting shots on people is nothing new," he added.
"He's as hungry as I have ever seen him currently, he's enjoying rugby and playing regularly, and his tackling is very impressive."