Welsh call No 2 for Rotherham United's Will Vaulks
And his busy summer will continue with qualifiers in Croatia and Hungary on June 8 and 11 respectively.
It's the second time Vaulks, who is expected to be a wanted man in the close-season transfer window, has been called up by Giggs.
He made his debut last March, playing the full game in a 1-0 friendly win at Wrexham over Trinidad and Tobago and then came one as a substitute in the 1-0 Euro 2020 qualifying win over Slovakia in Cardiff.
"We're delighted for Will," said Millers assistant manager Richie Barker. "He's obviously made a good impression on the Welsh set-up in his previous games and in Portugal.
"It reflects well on him and well on us as a club."
Vaulks' Rotherham teammates, centre-half Semi Ajayi (Nigeria) and winger Ryan Williams (Australia), are also on international duty next month.