Paul Konchesky has hailed Leicester City team-mate Michael Keane as one of the best young defenders he has seen.
The former England international said teenager Keane, who is on loan from Manchester United until the end of January, could turn out to be a top Premier League defender.
Konchesky said he had been impressed by the 19-year-old's maturity and composure on the ball, which is becoming more important in modern defenders.
"He is one of the best I have seen for how old he is," said Konchesky.
"He has trained at Manchester United every day, so he has had a good education, and got experience from the likes of Rio Ferdinand and Nemanja Vidic, and that has to be fantastic for him.
"Hopefully, he can get better and better.
"He is very composed on the ball and he is one of those defenders who likes to play, not just defend.
"It is a big part of his game, to come out with the ball and set things moving.
"These days, that is very important for defenders. There are a lot of players who want to play and it starts from the goalkeeper and the back four."
At 31, Konchesky is one of the elder statesmen of the City squad, and another one of the younger players who has been impressing him is new signing Chris Wood, who scored six goals in his first three games.
Konchesky believes Wood could be the final piece in the jigsaw as City boss Nigel Pearson builds a promotion-challenging squad.
"He is big and strong, and he has an eye for goal," said Konchesky.
"Every time he gets a sight of goal he will try to shoot and score.
"You forget he is only young. He has scored a few goals at every club he has been to on loan, even at West Brom.
"He is a finisher. He has a lot to his game, which is great. He has given us a boost and, hopefully, he will keep it going."