Arsenal have joined the interest for Bolton Wanderers defender Gary Cahill.
The Mail on Sunday says Cahill is being monitored closely, though with Manchester United interested in the centre-half, Wenger will steer clear if a bidding war develops.
Bolton manager Gary Megson is insistent Cahill won't be sold until the end of the season and the club will expect £20m for the defender.
Arsenal won't pay that but Wenger needs cover for William Gallas and Thomas Vermaelen.
