"We're quick to mention players like Maddison being cocky. We used to say it about players like Joe Cole and Matt Le Tissier. Eric Cantona obviously was seen as an arrogant and cocky player," Neville told Sky Sports News.
"Jack Grealish has had it as well and there's a stigma attached to some players. But actually that's why they are the players they are. They've got flair, ability, they want to look good and look the part.
"They're brilliant to watch and [Maddison] is a fantastic player and I'm sure Leicester will be working very hard to make sure they hang on to him."
United are understood to view Grealish as their number one midfield target, with Maddison seen as a more expensive backup option.