Six Nations 2013: Kelly Brown eyes Scotland win hat-trick

Six Nations 2013: BBC team pick their favourite tries

Captain Kelly Brown says Scotland must improve if they are to make Six Nations history against Wales on Saturday.

The Scots have never won three games in a row since the tournament expanded from five teams and could remain in title contention if they prevail.

"It's a huge challenge, but it's one we're really looking forward to," said Brown. "In the squad, we're just saying roll on Saturday.

"We've learned a lot of lessons and we're looking to improve."

Scotland are chasing three wins in a row in the championship for the first time since 1996 after comfortably seeing off Italy and then emerging as narrow victors against Ireland.

Brown believes the momentum generated must be maintained but that a performance like the one against the Irish won't be good enough against the defending champions.

"I feel that we will obviously take a lot of confidence from the previous two games and really good wins," said Brown.

"On saying that, I'm aware that we need to improve, so we've just been working as hard as we can to make sure we can do that and that we can go out there and play well at the weekend.

"The main thing for us was to get the win. In the past, we've worked really hard, but we've not been winning the games. So, to win the last two has given us a massive boost.

"We're aware that if we play the way we did against Ireland on Saturday, we'll not win. So, we've looked at that game."

One of the important aspects of Saturday's match will be the "Murrayfield factor" and the support of the home crowd, which Brown says gives the players immense confidence and could play a crucial role in the outcome of the match.

"It gives me a huge buzz, when you run out at first, the crowd just go absolutely wild and it's an incredible feeling," he added.

"As soon as you get into the game, it's more a case of focusing on your role.

"I felt the crowd against Ireland were fantastic and it definitely gave the side a real lift."

However, the number eight will not be underestimating the quality of the opposition and knows the Welsh will provide a tough test for the Scots.

"If you look at their squad, they've got dangerous players all over the pitch," said Brown.

"They're the reigning Grand Slam champions, so in terms of challenges, they don't come much bigger.

"But as a professional player, you want to be challenged by the top teams - and that's exactly what we'll get on Saturday.

"I think they're definitely favourites. If you look at the history of the championship over the last few years, there's no doubt they've been more successful, but for us, it's about making sure we can really gel as a team."