Carlos Tevez is enjoying his football in Italy and has every intention of honouring his contract at Juventus.
Ramires is hoping to spend 'much longer' at Chelsea after passing the 200 appearance mark for the club.
Fox has sunk down the pecking order at St Mary's following the emergence of England Under-21 left-back Luke Shaw.
Now Bolton have made a move to land Fox, who has featured just once for the Saints this term.
Fox will join Bolton until January, when they could opt to make the move permanent.
Fox is set to be the latest loan recruit for Bolton, who snapped up Liam Feeney from Millwall, Neil Dann from Leicester and Cardiff's Kevin McNaughton last week.