Robbie Savage admitted live on BT Sport that he was tearing up after learning that his son Charlie had made the bench for Manchester United's clash with Young Boys on Wednesday night.
Charlie could make his debut in the closing Champions League group stage clash.
Savage had progressed through United's youth system, and signed a professional contract in April.
And was named in the squad alongside fellow youngsters by Bjorn Hardley, Charlie Wellens, Sam Mather, Zidane Iqbal and Shola Shoretire.
Robbie, who is commentating on the match, was asked for his thoughts on the news as Charlie's father.
And the former Leicester and Birmingham midfielder could barely contain his emotions while responding to Jake Humphrey.
"I'm starting to tear up because Charlie has achieved so much in his young life," he said.
"He's never been top of the class but his application, his work ethic and desire has got him to where he is.
"My father who's sadly not with us would be looking down proud of his grandson. Even if he doesn't get on the pitch, whatever happens for the rest of his life he's been on the bench for Manchester United.
Is Ralf Rangnick right to name so many youngsters in his team? Comment down below
"He's done it on his own and all the coaches have played a huge part so I'm absolutely delighted.
"If he gets on to grace the Theatre of Dreams, his nana at home will be in tears now. He's a great kid and he'll do everything.
"He's a great player and has a wonderful left foot. He can run and I think he's the second fittest at the club. Take it all in because he's one very lucky boy but a boy who's worked incredibly hard."
Pundit and United legend Rio Ferdinand commended new United manager Ralf Rangnick for naming so many youngsters in the squad.
It's audition time for these young players," he said.
"Great to see but again following the traditions of years gone by but like I said he has a real good history of breeding and making players betters. That's what you want.
"No matter what you spend on players they need improving. He's somebody who's very accustomed to doing that."