The midfielder currently plays for Croatian side Slaven Belupo.
Celtic are reportedly keeping an eye on Slaven Belupo midfielder Ljuban Crepulja after the club came across the youngster during one of their scouting trips in Eastern Europe, the Daily Record reports.
The Bhoys have got several players on their radar, and it was while scouting one of those targets, Ivan Mocinic that the scouts came across Crepulja, the Record states.
The 22-year-old was attracting interest from Championship duo Fulham and Blackburn last summer, but the pair decided against making a bid for the holding midfielder (via Record).
With his contract set to expire in the summer, the Record reports that he is available to sign on a pre-contract agreement, or can be purchased now for around £300,000.
The former Croatia U20 international has already made over 100 senior appearances during his career, and so, may not be far away from being ready to play for Ronny Deila's side, or at least provide good cover for the likes of Scott Brown and Nir Bitton.
The pair have been an integral part of Celtic's success in the Premiership this term, providing plenty of defensive cover, while also helping out when Deila's men go forward.