Chelsea, Manchester United and Liverpool have all expressed interest in signing Havertz ahead of the summer transfer window.
Former United and Tottenham striker Berbatov has heaped praise on Havertz and says he could replace Hazard at Stamford Bridge.
Belgian superstar Hazard, who scored more than 100 goals for Chelsea and helped the Blues win two Premier League titles, was sold to Real Madrid last summer.
Berbatov told Betfair: ‘I think it is interesting to see Chelsea linked with him, they haven’t really replaced Hazard since he left and it was always going to be difficult to do so.
‘I think for sure they need to go for a young player with a lot of football ahead of them, if that is the case then they will also have to be patient as well because sometimes young players need time to adjust to the physicality and speed of Premier League.
‘Havertz is an option for them but it has only been the first week back of the Bundesliga and I hope that he continues to way he has comeback, by scoring and producing the goals that he has done so far.’
Berbatov added: ‘Havertz has great quality and he will become even better in the future.
‘I was so pleased to see, not only him but the Leverkusen team came back really strong in their win against Werder Bremen.
‘Havertz needs to get used to the sounds that are being made about him following his two goals on Monday night because teams are going to come after him.
‘There’s a lot of talk that Liverpool, Chelsea and other teams are interested in him, so now he needs to be careful, not let that go to his head and stay focused on his game.
‘He has enough quality and if he continues the way he is going teams will still be there, they won’t go away.’
‘All eyes are on the Bundesliga at the moment and when you score goals and play good football it is no surprise that teams like Liverpool and Chelsea want you.’
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