Scotland's Hogg evades a tackle during the first Test

Scotland head coach Frank Hadden will keep faith in his original 30-man squad for the second Test against Argentina in Buenos Aires.

Hadden has decided against calling up players from the A squad, who are in North America for the Churchill Cup.

Wing Simon Danielli, fly half Dan Parks and lock Scott MacLeod are injury doubts but are expected to be fit.

The Scots are looking to end their tour with a victory following last weekend's 21-15 defeat in Rosario.

Flanker Ally Hogg believes inexperience was a factor in that first Test loss in Rosario.

"In the first half we made some good line breaks and forward moves," said Hogg.

"When we were 15-10 ahead we were expected to keep doing it and sealing it - that is something to focus thinking on this week, to have the mentality not to lose the advantage.

We have to be a bit more aggressive Scotland flanker Ally Hogg

"I think it is a mentality issue to know what to do at the right time and doing it.

"We have to be a bit more aggressive. We just need to keep the pressure on and especially in defence and playing more rugby."

Meanwhile, Argentina boss Santiago Phelan has called up wingers Horacio Agulla and Lucas Borges, centre Federico Martin Aramburu and flanker Alvaro Galindo to his squad.