Manchester United under-21 boss Travis Binnion lavished praise on youngsters Alejandro Garnacho and Kobbie Mainoo.
Binnion admits that he knew both would go all the way, but is impressed by the speed of their first team integrations.
"I think his dependability is the greatest quality he's added," Binnion told Manchester Evening News on Garnacho.
"As a young winger coming through and in his first 20 games, I was watching and wondering what we'd get out of possession, which was fine, but we knew there were high-level moments in there.
"Whereas now, I watch his pressing, tracking, positioning; durability and his robustness, and I think that's where the growth of his game has been. He still needs to do more in possession and he'll be aware of that, but look at how he did against Ben White the other day.
"His end product needs to be greater, but I thought he got the better of that duel and he's fazed by not going back the full-back at the first time, he'll just keep going and trying."
He also added on Mainoo: "The way Kobbie plays the game is the way you coined it, a breath of fresh air.
"There is zero fear, he's really composed and has good all-round game understanding, so he's never going to be terrible in a game of football because he's too bright and too smart.
"He'll be more successful on some days than others, but am I surprised at his development? I'm not surprised at what I'm seeing, but how quickly he's got there and how he's established himself is naturally surprising because it's really hard to do that. That's the only surprising aspect
"How he's handled it and how he's playing is not a surprise and I think his mentality is why he can take it in his stride. Yeah, results have been up and down, but he's been a constant within good and poor performances, so he's learning and getting that extended run of opportunities.
"When he gets a chance to sit down and reflect on this season, he'll think about what has and hasn't gone well and what he needs to do better because he's a really bright lad. He's unassuming, smart and he'll only continue to get better, I've got no doubt about that."
