Celtic are said to be keeping tabs on Philadelphia Union midfielder Daniel Gazdag - with the Hungary star reportedly on a three-man watchlist.
After a quiet start to the summer window, Brendan Rodgers' side are ramping up their transfer drive ahead of the new season.
Goalkeepers Kasper Schmeichel and Viljami Sinisalo have already been snapped up and permanent deals for loan stars Paulo Bernardo and Adam Idah are edging ever closer.
Southampton's Shea Charles and Venezia's Tanner Tessmann are believed to be on the Hoops radar, and Sky Sports now report that Gazdag, 28, is also of interest to the champions.
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