Celtic's young prospect Daniel Kelly could be on his way out of the Scottish champions as a free agent in the next January transfer window.

Despite Celtic's efforts to retain the player, there has been no agreement reached between the two parties so far.

Many top European clubs have been closely monitoring Kelly's progress, including German Bundesliga side, Bayer Leverkusen. However, Celtic have rejected all approaches for the talented youngster up to this point.

The lack of a new contract agreement between Celtic and Kelly has raised concerns among the club's supporters, who are eager to see the promising 18-year-old continue his development at Celtic Park.

With his current deal set to expire on December 31, Kelly is free to negotiate a pre-contract agreement with other clubs.

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Kelly has made five first team appearances for Brendan Rodgers' side to date, and he ensured his name was on every Celtic fans lips when he scored an impressive goal on his senior debut as the Double-winners thrashed Dundee 7-1 in February. 

He has been on the verge of breaking into the first-team squad for some time now though after catching the eye with his performances in the Lowland League, where he has impressed under the guidance of Celtic's B-team coaches, Stephen McManus and Darren O'Dea.

Having joined the club as an eight-year-old, Kelly has continued to develop his skills and has been a key player for Celtic in their recent UEFA Youth League campaigns. Last season, he has found the back of the net against the likes of Lazio and Feyenoord, showcasing his goal-scoring abilities at the youth level.

Furthermore, Kelly's talent has also been on display in the Premier League International Cup, where he netted against Brighton. This performances has only added to the growing excitement surrounding the young midfielder and his potential to make his mark on professional football.