Former Manchester United midfielder Kleberson has talked up the idea of the Red Devils signing Serie A duo Kalidou Koulibaly and Mario Mandzukic but he isn't convinced James Maddison would be the right fit.
Maddison has been tipped to accept a move to Manchester, but former Red Devil Kleberson has raised concerns over his mentality.
"I don’t think it would be great for Maddison to join United," the World Cup winner told US-bookies .
"They [Leicester] have had a good start to the season but when you do a big jump from a smaller club to United, it is mentally tough for these players.
"They have to be able to learn to adapt to play at a big club. It will be interesting to see if they can, but I don’t know if he will be a good enough signing for United."
"When you sign big players like Mandzukic, you can see the impact they bring into the club, not just on the pitch but also off the pitch," the Brazilian added. "They bring experience for the young players which helps to improve them as they grow into their careers."
Kleberson also suggested that Maguire is still lacking a top-quality partner in the heart of the United defence, and, with Goal reporting that Napoli star Koulibaly is a summer target, the former midfielder thinks he'd be a useful addition.
"Koulibaly looks athletic and physical which will bring more energy in the defence," he said. "Maguire is a big name in England, but it would be good for United to look outside of the Premier League to find players who could play for them."
Ahead of United's huge showdown against Liverpool at Old Trafford on Sunday, Kleberson dismissed the notion that Paul Pogba's absence limits the home side's chances of victory.
He concluded: "It is a big loss for the team to have such a talented player missing, but it is Manchester United vs Liverpool, you never know what will happen! It is more of an emotional game over a technical game."