Celtic's youngsters were beaten 1-0 by Rangers yesterday, but there is still hope for their future at the club.
The Bhoys have a number of fine prospects coming through at the moment and it seems that Ronny Deila is close to calling upon some of the brighter talents.
Frail says that there are two individuals in his team who could get first-team action soon, but insists that they will need to impress more in big games before they are given the chance.
Celtic's development side lost 1-0 to Rangers yesterday and Frail feels that the poor performance of his side may have convinced Deila to stick with his more experienced players for the time being.
“We have good young players and one or two of them are getting close to the first-team squad but these are the games that they’re judged on.
“Our technique let us down a little bit and because we never really got to grips with things in the first half we were chasing the game and starting to force it, and missed three or four chances in the second-half.”
Frail was deliberately cryptic with the names of the two players who are nearing call-ups to the first-team, but recent reports have suggested that Kieran Tierney has impressed Deila.
Tierney, a 17-year-old full-back, has been one of the key players for Celtic's development side this season and there is great hope about his future.
Deila has shown that he is confident in backing the club's youngsters during his time at the club already, with the likes of Liam Henderson and Callum McGregor both seeing senior action this term.