Mike Blair believes Scotland can cause another Six Nations shock, following their victory against England, when they take on Ireland in Dublin on Saturday.
After losing their opening match in the competition to Wales, Scotland have bounced back by defeating France and then England, and coach Gregor Townsend has the added benefit of having several players available again after injury.
Townsend has named a revised training squad of 40 players for the last two Six Nations games, and was able to include lock Richie Gray, hooker Fraser Brown, centre Alex Dunbar, and props Zander Fagerson and Darryl Marfo, who have all recovered from injuries.
Skills coach Blair said: "There's a good feeling in the camp and it's a boost to have these players back in the squad.
"We have some guys coming back from injury and it's important for us to also breed players coming through the ranks, to give them the opportunity and see how they perform in this environment.
"Having that slightly larger squad enables you to look at different players and get a better insight. It makes for a really interesting selection meeting when you have guys coming back from injury up against new guys in great form."
Scotland can be backed at 4/1 to beat Ireland, who are 2/7 to win the Six Nations title this year and 1/1 to complete the Grand Slam having already triumphed against Italy, Wales and France.
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