Ange Postecoglou looks to bolster his defence. The defender is on his way out of Tottenham and Record Sport understands contact has been made between the Parkhead club and the Premier League giants.
Carter-Vickers spent last season on loan at Bournemouth and the Cherries and Newcastle are also interested in a permanent move for the 6ft central defender who is valued at £5m and has eight caps for the USA.
But Celtic, who are also in advanced talks with Rubin Kazan over Sweden international defender Carl Starfelt, would seriously interest the 23-year-old particularly with the Champions League qualifying campaign just around the corner.
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