Celtic's chances of signing William Troost-Ekong have been boosted after the defender admitted he won't be renewing his contract at Dutch side Groningen this summer.
Goal.com's Graeme Bailey reported last month that Scottish league leaders Celtic aim to snap up the centre-back, with his contract set to expire in June.
Troost-Ekong stated: "I won't be returning to Groningen at the end of my loan and we are looking to see what the best step will be now.
''There's a lot of interest from the UK and some in Holland but I will focus more on that once the season is over.''
The 21-year-old was with Tottenham Hotspur's academy until 19, before being released and has rebuilt his career in Holland.
He is a former Dutch under-20 international but is currently considering switching his international allegiance to Nigeria.
When he signed with Groningen, he just missed current defender Virgil van Dijk, who was sold by the club to Celtic that same summer.
Troost-Ekong has made 19 appearances in the Eredivisie for Dordrecht this season, and will be available on a free transfer.