Arsenal's second-largest shareholder, Alisher Usmanov, has called on Stan Kroenke to clarify his plans for the club after the American moved to within 17 shares of a compulsory takeover bid on Monday.
Kroenke, who has been steadily accumulating shares in the Premier League club, purchased another 25 shares for £212,5000, taking his total holding to 29.9% and within touching distance of the 30% figure that would compel him to make a full offer.
Usmanov is perceived as a keen rival to Kroenke and currently owns 26% of the club even if, unlike the American, he has not been invited onto the club's board by existing shareholders.
Now Usmanov, through his investment vehicle Red and White Holdings, has requested that Kroenke make his intentions for the club clear.
"It is important for the stability of the club for him to clarify his position," a spokesman for Red and White Holdings told the Telegraph.
Usmanov became a prominent player at Arsenal when purchasing the shares previously held by former vice-chairman David Dein in 2007.