HITC Sport understands Reading are waiting on defender bid.
Mannone enjoys the competition from understudy Jordan Pickford for the number one spot.
Jose Fonte has spent six years at Southampton, but could he leave?
The Blues face competition from Chelsea for his signature.
The attacking midfielder has a £8.4 million release clause.
Arsenal are second favourites to sign Southampton's Virgil van Dijk and he would be the perfect acquisition.
Cook left Leeds for Bournemouth earlier this month.
The teenager starred during a 25-minute cameo performance in the win over Cambridge United on Saturday.
Celtic take on Astana in the Champions League qualifiers this afternoon.
The Gunners have lost Per Mertesacker to a long-term injury.