Arsene Wenger has refused to rule out the possibility of signing Gary Cahill.
The Bolton defender has been consistently linked with a move to north London in recent weeks as the Gunners search for defensive reinforcements.
Arsenal have are thought to eyeing a number of potential of acquisitions - including Aston Villa's Richard Dunne and Bosnia captain Emir Spahic - but, when questioned on his transfer activity, Arsene Wenger refused to be drawn on any specifics.
"At the moment, I cannot come out with any name," said the Arsenal boss - as reported by skysports.com.
"I think Gary Cahill is a very good player, but I cannot tell you more.
"We like to keep our transfer negotiations always very secret, because it puts more pressure on when you go public so you would understand we don't want to speak publicly about that."
Should Arsenal step up their reported pursuit of Cahill, then they are expected to have to part with a hefty sum after Bolton boss Owen Coyle slapped an astronomical valuation on the head the 25-year-old.
Coyle said: “Gary Cahill is a player I want at this football club for a long time to come. If someone comes in with £25 million, any football club would have to look at that."
Arsenal are expected to add at least one centre-back to their ranks during the transfer window after injury to Sebastien Squillaci left them with just two fit recognised centre-backs in Laurent Koscielny and Johan Djourou.
The long-term injury to Thomas Vermaelen is also a frustration for Arsenal and Wenger admits that he is worryingly short on central defenders.
"It is a worry as long as [Sebastien] Squillaci is out, I must say, as we are short, but we have other resources," he said.
"If the worst came to the worst, [Abou] Diaby is coming back so if we have to put [Alex] Song back we have Diaby coming back to play in midfield."
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