Willian has suggested that he is likely to leave Chelsea after they suggested that it was "impossible" to offer him a three-year contract.
Having enjoyed a hugely successful period at Stamford Bridge since 2013, Willian now has less than three months remaining on his existing deal.
Although the Brazilian would likely pen terms lasting until 2023, the playmaker has acknowledged that the Blues are showing no signs of backing down over their own demands.
Speaking to Fox Sports, the 31-year-old said: "Everyone knows that my contract ends now in a few months, so the renewal is really a difficult thing to happen.
"I think it will be very difficult for me to renew because Chelsea offered me two years, I asked for three and it ended there, we didn't talk anymore, we didn't negotiate anymore.
"Three years, Chelsea said it would be impossible, so for now there's this difficulty, but nothing is impossible. We don't know what can happen, suddenly we could make a deal and get it right. But what I can say today is that my contract is going over and I will be free to negotiate with any team."
Willian has contributed six goals and six assists from 36 outings in the Premier League and Champions League this season.
