According to the club’s director, the Scottish champions have already made their move for the striker.
He said to the club’s official website a few days ago that the Hoops have sent out an offer but the player will only be sold for a fee of around £6-6.8m.
“It is true that Celtic sent us an offer and showed a huge interest in Andraz Sporar,” Kmotrik told Slovan’s official website. “We are in touch not only with Celtic. There is interest from other big clubs from France, Spain, Italy, Portugal and Belgium.