The Blues have been strongly linked with the 18-year-old, who is valued at around ?20million by his club.
Lukaku is already a regular for his club and a full international while he's also been touted as the new Didier Drogba by some for his powerful style of play.
"Lukaku had a magnificent season in Belgium," he said.
"We are pondering every decision because we don't want to go into the market and make mistakes.
"We have plenty of availability in terms of forwards who can play in different positions - with (Nicolas) Anelka, with (Salomon) Kalou, Didier, Torres and (Daniel) Sturridge.
"This is the reality at the moment of our squad. We need to find the correct balance and this is why pre-season is important.
"On that decision, to bring in another forward, at the moment I don't think we will."
Source: Team Talk
Source: Team Talk