Shakhtar Donetsk playmaker Willian says it would be difficult to choose between Chelsea and Tottenham Hotspur, and claims to be in regular contact with Andre Villas-Boas.
Willian was reportedly the subject of two failed bids from Chelsea earlier this year, while Tottenham have also been repeatedly linked with the Brazilian.
The 24-year-old would have been allowed to join Chelsea if Shakhtar's demands had been met, but he concedes it would be hard to decide between the Premier League rivals.
"There were two offers in the summer," Willian told Lancenet. "One from Chelsea and one from Tottenham. Choosing between the two clubs would be difficult. I don't know."
Spurs boss Villas-Boas was in charge at Chelsea when they saw a reported £16.7million bid for Willian knocked back in January.
Willian said: "I mean, Tottenham is a big club and it has a good person in charge. Andre Villas-Boas wanted to bring me to Chelsea and also tried at Tottenham.
"He always sends me messages. We are always in touch, and he has become a friend, for sure. And Chelsea is Chelsea. They are a great team, with amazing players and are the champions of Europe."
Willian added: "I would love to play for either of those clubs. But my mind remains at Shakhtar, and I'll do my best to get the win against Chelsea.
"Everybody knows what my goal is. I've clearly stated that I would like to play in a bigger stage, whether it be England, Spain or Italy.
"I want to come back to the national team, and being in a bigger spotlight would help me get noticed."