The Belgian is set to sign a new contract with the Blues, believed to be worth £300,000-a-week, and Nevin believes the winger is worth the money.
Nevin told Starsport: “Last season it became clear the affect that he has on the team and the club, especially compared to when he didn’t have a good season the season before.
“He makes a huge difference. The players who can bring extra stuff and are that touch above everyone else and take two or three players out of the play, they destroy systems.
“If you want to win things, be it the league or the Champions League, if you want to win the major trophies then you need major players like Hazard.
“If their aim is that high, you need him and need to keep him and know that he is worth just about as much as anyone else.”