SECOND row Luke Charteris says Wales are “not reinventing the wheel” but they have to make changes to their game to live with the world’s top nations.

The former Newport Gwent Dragons lock and his teammates were outscored five tries to one by Australia on Saturday, going down 32-8 at the Principality Stadium.

Australia’s first-half dominance was such that Wales didn’t have a single lineout in the opening 40 minutes, while the hosts’ defence was breached with apparent ease.

"You have to keep evolving, otherwise you’ll be left behind, as these teams have all shown,” said Charteris.

“It wasn’t really a very good Test against Australia because we didn’t have enough ball, but there were a couple of things we did that paid off and there’ll be a few more things we try next week and the week after. We’ll keep trying things.

“We are not reinventing the wheel or anything crazy like that, but there are little tweaks here and there that we need to make to keep adapting.

“Teams analyse you, so you can’t keep showing the same things as they’ll know what to expect.”

Reflecting on the game itself, Charteris added: “Australia played with intensity in the first half and always seemed to get behind us.

“It’s hard to address your defensive lines then and make a positive impact in defence.

“Because of that we weren’t able to get good line speed and slow them down, so they kept getting quick ball. They were quite clinical in the way they took their tries.

“We said at half-time we needed to slow it down either at first phase or at set-piece and we did a better job of that in the second half.

“But if you give a team like Australia two or three scores start it’s very difficult to change a game around.”

Wales were without Sam Warburton, Alun Wyn Jones, Taulupe Faletau and Jonathan Davies at the weekend but Charteris is hopeful some of the quartet will return for the clash with Argentina this Saturday.