LIONS captain Sam Warburton has hailed Wales skipper Cory Hill as a "complete, modern second row".

The Dragons lock followed in the footsteps of Warburton when he became the 136th man to skipper his country in last week's 23-10 win against Argentina in San Juan.

The 26-year-old has the honour again when Wales attempt to repeat the trick against the Pumas in Santa Fe this evening (kick-off 8.40pm) for a first series win on Argentine soil since 1999.

It will be Hill's 18th cap and 12 of those have come this season with the Dragon featuring in all of Warren Gatland's matchday 23s in 2017/18.

He has started every game since Jake Ball suffered a shoulder injury against the All Blacks in November and has caught the eye of Warburton, who is on the comeback trail from knee surgery.

"I agree with what I have heard Warren Gatland say about Cory being the most improved player in the Wales squad," said Cardiff Blues flanker, who led the Lions to glory in Australia in 2013 and a draw in New Zealand last summer.

"He's just a complete, modern second row. He's got so much ability, his leadership, handling, lineout work and defence are all there, while he's aggressive.

"Cory has been a great find and, along with Ross Moriarty, has forced his way into what was a settled pack."

Hill continues to take his chances this summer and the same applies for his Dragons teammate Hallam Amos.

With Leigh Halfpenny and Liam Williams rested, the 23-year-old will make his third successive start at full-back after a lively performance in San Juan.

Amos, who scored in the win against South Africa in Washington, cut some lovely lines and also conjured a remarkable pass to put James Davies over for the first try.

"He's a modern day player who has got great skills. His off-load for Wales' opening try last weekend was unbelievable," said Warburton.

"Hallam has all the qualities needed: he's very explosive, quick, dynamic, has a side-step, is strong and can kick."

Wales have made five changes to their XV for tonight's game with Ellis Jenkins coming in at blindside flanker to link up with James Davies on the openside and Ross Moriarty at number eight.

There is a new look front row with Ryan Elias and Tomas Francis making their first starts of the tour alongside Rob Evans.

Scrum-half Aled Davies gets his first start and Owen Watkin replaces Hadleigh Parkes (broken finger).

"There's no doubt that it's going to be a lot tougher than last week," said Gatland.

"If I was coaching Argentina, I wouldn't be making too many changes.

"And if you were in that group of players, you'd probably be reasonably embarrassed about the fact the expectation was they were going to win quite comfortably and they were beaten by a group of young men and boys, who embarrassed them.

"So, from that point of view, our guys need to be aware of the physical challenge that is coming their way because I think it's going to be absolutely brutal and they're going to be desperate."

Wales: Hallam Amos; Josh Adams, Scott Williams, Owen Watkin, George North; Rhys Patchell, Aled Davies; Rob Evans, Ryan Elias, Tomas Francis, Adam Beard, Cory Hill (captain), Ellis Jenkins, James Davies, Ross Moriarty.

Replacements: Elliot Dee, Nicky Smith, Dillon Lewis, Bradley Davies, Josh Turnbull, Tomos Williams, Gareth Anscombe, Tom Prydie.