In recent weeks the Serie A top scorer has threatened to leave the San Siro feeling he had achieved everything possible with the club, and according to his agent, Fabio Parisi, Chelsea have the edge over rivals Real Madrid.
"From the rumours I'm hearing and the news I have, I believe that Ibrahimovic will be the final brick to complete [Carlo] Ancelotti's Chelsea,' Parisi said. 'There are situations that make me say this.'
It could be that the club negotiate a swap deal which would see Ibrahimovic arrive at Stamford Bridge while Ricardo Carvalho, and Deco plus a sum of cash would move the other way.
Not the only club vying for Ibrahimovic's signature however, Chelsea face competition from big spenders Real Madrid. Reports in the Spanish and Italian media claim Moratti is due to meet with Florentino Perez next week to discuss a deal.
With a growing threat that Inter could also lose Brazilian defender Maicon to the Spanish side, Moratti said: "As a fan I'd want them to stay, but as a president with a balance sheet to keep an eye on, I say that if they want to go, they can go.
"It would be counterproductive to keep them. I'd give them both a 50 percent chance of staying at Inter."
Inter's chief executive Ernesto Paolillo said last week that a fair price for Ibrahimovic would match the £80 million Real have bid to sign Cristiano Ronaldo from Manchester United.
The asking price for Maicon is 40 million euros (£33.5 million), according to reports.