FORWARDS coach Robin McBryde has warned Argentina there is more to come from Wales ahead of Saturday's second test.

Wales drew first blood with a 23-10 victory over the Pumas in the first test in San Juan last weekend thanks to tries by flanker James Davies and wing George North.

Argentina are sure to be much-improved in Santa Fe on Saturday (kick-off 8.40pm) but former hooker McBryde is confident that his side can get even better.

"There's definitely a spring in the step following a good performance and we are now looking to finish off the job," said McBryde.

"It was a big step forward in the development of some of our younger players.

"It was a stern test but there's going to be an even bigger test on Saturday so we've got to back it up. We know it was a good win but we also realise we weren't at our best.

"We expect Argentina to improve but there's a lot of small little things we can improve on as well. There's small little things we can improve.

"What was so pleasing was the chat and communication in getting those small things that matter working."

Warren Gatland has blooded a number of inexperienced players this tour and McBryde was hugely impressed with the performances of Dragons hooker Elliot Dee and tighthead Dillon Lewis as they stood up to the powerful Pumas pack.

"I thought Dillon's contribution, not only at the set-piece but away from it was outstanding," said the forwards coach. "He was carrying ball, he was putting pressure over the ball defensively and he was brilliant.

"The scrum obviously comes first when you are a tighthead and I thought his profile was outstanding.

"Everybody is aware how Agustin Creevy is a big talisman for them and it was a big challenge for both Elliot Dee and Ryan Elias.

"(Lock) Adam Beard was also outstanding and he put in an 80-minute performance."