The Red Devils' assistant boss says the club's youngsters must look to make their mark when the opportunity presents itself.
United manager Louis van Gaal used several youngsters over the course of the 2014/15 campaign, with the likes of Tyler Blackett, Paddy McNair and James Wilson all featuring in the first-team at different points in the season.
They also have Belgian youngster Adnan Januzaj in their ranks, while they have added Dutch starlet Memphis Depay to their ranks this summer, and Giggs has urged them all to make a mark when given the chance to do so during the club’s pre-season games.
“Young players might come on tour thinking they'll not get many minutes but then suddenly there'll be an injury to a senior player," he told manutd.com
“The young player might then have a ten or fifteen-minute cameo, play really well, get into the team for the next game and do really well again. So the tour is definitely an important stage for the young players to make their mark.”
Loan moves would be more beneficial
Even if the youngsters impress Van Gaal during pre-season, it is hard to imagine that they will be featuring regularly for the senior side next season.
The Dutchman has been linked with moves for a number of big stars this summer, as he looks to add experience and quality to his side ahead of their return to the Champions League and potentially a Premier League title challenge.
The best option may be loan moves for several of the youngsters in the squad, with increased game time elsewhere likely to be more beneficial to their development than Under 21 football at United.