The England reserve goalkeeper has previously been linked with Portsmouth and Charlton, but with veteran Dean Kiely on his way out, the Addicks may now be ready to move.
Green is widely believed to want a return to the Premiership in order to cement his spot in Sven Goran Eriksson's World Cup Squad, and time is running out. He did little to dispel murmurs about his leaving when he hurled his shirt onto the crowd after City suffered a last gasp defeat to Watford on Saturday, although he did put his actions down to frustration.
The price on Green's head is believed to be a modest £2million, although a swap deal involving cash and a player, possibly Kevin Lisbie or Francis Jeffers, could be on the cards. Nigel Worthington tried to get Jeffers on loan in the summer and had Lisbie at carrow Road a couple of months ago.