Inter Milan president Erick Thohir has admitted Fredy Guarin will not be forced to stay amid interest from Chelsea.
According to Sky Sports, the Colombian international has been heavily linked with the Stamford Bridge club.
And Thohir, who recently took over at Inter, has revealed Guarin is free to leave the club if he wants to.
He told Indonesian website Liputan6.com, as reported by Sky Sports: "Guarin is an excellent player and we'd like to keep him, but when there are offers from big clubs you need to take it into consideration.
"We can't force him to stay if his heart isn't in the club."
And Thohir admitted that his January transfer plans for Inter are reliant on raising money through player sales first.
Speaking to Republika Online, he said: "The January window comprises of a series of opportunities in the market.
"Fans should not expect bombs but, if we have our chances, we will do something interesting.
"In any case, we have to sell before making any purchase."
Chelsea boss Mourinho has clearly targeted a midfielder this month, after confirming that another striker was not a priority for the Blues.
The Stamford Bridge club are believed to be closing in on Benfica defensive midfielder Nemanja Matic, a former-Chelsea player who moved to the Portuguese club in 2011 as part of the David Luiz transfer.
He's set to undergo a medical at Chelsea later today.