Captain upbeat after Wallabies' 'tough grind'

Australia captain Harry Wilson is confident the Wallabies can continue to make improvements after notching a last-gasp 20-19 win over hosts Argentina in the Rugby Championship in La Plata on Aug 31.

- 

Ben Donaldson's late penalty earned Joe Schmidt's side their first victory in this edition, after opening with comprehensive back-to-back defeats by South Africa, giving Wilson belief the Wallabies are on the right path.

"It gives us a lot more confidence," said the 24-year-old, who was captaining the Wallabies for the first time. "We're a young group and we've been building since the start of the year.

"We played some decent footie against the Boks, but they're the best in the world and we didn't get the results there.

"It felt as if we improved in those games and then, tonight, we showed some more improvement.

Just to get the win gives us that little bit more confidence to keep improving."