West Bromwich Albion want a big fee for their man before sanctioning a move.
Bournemouth's Lewis Grabban in action with West Brom's Jonny Evans
Per Mertesacker and Gabriel Paulista have both picked up injuries in pre-season, while Laurent Koscielny has only just returned from an extended break following Euro 2016.
West Brom's Jonny Evans in action with Watford's Odion Ighalo
The Gunners are now expected to sign a new central defender before the weekend, with the Daily Mail reporting that they have already scouted Evans ahead of a potential move.
And according to the Telegraph, he is keen on the idea of a move although his club are seeking a big price for his services.
Norwich's Matthew Jarvis and West Brom's Jonny Evans
The newspaper reports that the Baggies are insistent that it will take more than the £15 million Arsenal believe would secure his signature.
It now remains to be seen if Arsene Wenger is willing to pay the money to sign him with the current injury crisis threatening to curtail their season before it has even begun.
Jonny Evans celebrates scoring the second goal for West Brom