Aly Cissokho claims Newcastle are holding discussions with Lyon regarding his services, but says there other clubs are interested as well.
The Magpies have been strongly linked with the France international in recent times, with it understood that Alan Pardew contemplated making a move last summer.
No deal materialised then, but it is possible a switch will be pushed through during the winter window.
Lyon's precarious financial standing means they must move players out, and Newcastle are looking to add to a squad that is pushing hard for a top-four finish in the Premier League.
Cissokho claims talks with Newcastle are still at an early stage, but he is prepared to start thrashing out terms if given the go-ahead by his current employers.
"I am waiting for the green light from Lyon," he told Sky Sports.
"I am a Lyon player and if they agree a fee with a club, I will then talk to that club.
"But nothing is done yet and I have not been to Newcastle for a medical.
"Newcastle and Lyon are talking about me, but there are other teams interested as well."