Gilchrist to skipper Scotland
Scotland head coach Vern Cotter has named lock Grant Gilchrist as captain for the Test against Argentina on Friday.
Edinburgh lock Gilchrist, 23, has been handed the role despite having played only six Tests and never having captained his club.
Cotter has made a number of changes, with only four of the starting 15 against Canada last week retained in Peter Horne, Sean Maitland, Stuart Hogg and Gilchrist.
They are joined by another three who were involved off the bench last week in Blair Cowan, Kieran Low and Grayson Hart, with eight new players coming into the team having flown directly to Argentina from Scotland.
While there are no new caps, three of the side, Hart at scrum-half, Low out of position at number eight, and Jonny Gray at lock, will be making their first international starts.
"Gilchrist has impressed me with his leadership qualities," Cotter said.
"He's already calling the line-outs and he's been part of this tour right from the outset, which is important for continuity from the first two games. He leads by example. Some captains are more at ease talking and organising whereas Gilcho is more adept at just getting on with it."
Discussing the appointment, Gilchrist said: "It's a huge honour, one I'm really looking forward to.
"For me it's a boyhood dream. Of course there's massive responsibility, not just to this team, but to the entire country and Scotland fans throughout the world, but I'm really excited by it."
Ross Ford will become the most-capped Scotland hooker on 76, overtaking Gordon Bulloch.
Scotland team: S Hogg; S Maitland, N De Luca, P Horne, T Seymour; D Weir, G Hart; A Dickinson, R Ford, G Cross, J Gray, G Gilchrist, R Harley, B Cowan, K LowReplacements: P MacArthur, G Reid, J Welsh, T Swinson, C Fusaro, H Pyrgos, T Heathcote, D Fife