New head coach of Scotland Gregor Townsend has recalled Rory Hughes and Greig Tonks in the squad for the summer tour that kicks-off on 10th June.
The decision comes after Sean Maitland suffered an ankle injury while playing for his club Saracens in the final round of Aviva Premiership clash against Wasps on 6th May.
Glasgow Warriors wing Hughes has featured in two Tests for the Dark Blues in 2015 while Tonks, who moved to London Irish in 2016 has been capped six times after making his Scotland debut in 2013.
"We've watched Greig [Tonks] closely this season," Townsend said.
"He's done really well in a good London Irish side and played a lot of full-back, but also covered at centre and stand-off.
"He's a player that brings aggression and a really good kicking game, but also has the ability to step up at first and second receiver. Primarily we're looking at him as a 15, but it's positive he can cover other positions as well.
"Rory has had a really good season. He was on excellent form before the injury he suffered just before Christmas and got back to that form towards the end of the season.
"This is an opportunity for him to continue the good work he put in this season, in particular leading up to the autumn tests, where he was capped against Georgia."
Scotland will take on Singapore on 10th June followed by clashes against Australia and Fiji on 17th and 24th June in their summer tour.