Alisher Usmanov has told Bloomberg he would consider investing in Everton if there was the right "proposal or a possibility."
Usmanov, who has agreed to sell his 30 percent stake in Arsenal to Stan Kroenke, is a business partner of Everton majority shareholder Farhad Moshiri.
The Russian tycoon, whose USM Holdings company sponsors Everton's Finch Farm training ground, bought his Arsenal stake in 2007, with his shares reported to be valued around £550 million.
"Should there be a proposal or a possibility to invest in them with good potential returns, I would consider the deal," Usmanov said.