The Scottish giants signed Kuhn last January from Austria Vienna for only £3million, and he is now being seen as a “real bargain” due to his performances so far.
The right winger has scored 10 goals and provided 11 assists in 17 performances in all competitions this season, as he has become a crucial member of the squad.
Well-placed sources have confirmed to Football Insider that there is interest in Kuhn from England, with Brentford and Fulham monitoring his progress.
Interest in the winger is expected to increase during the summer transfer window, which will place pressure on the current Scottish Premiership champions.
Celtic will want to a significant fee to sell Nicolas Kuhn
Celtic have showcased they are willing to hold out for significant fees in the past for top players who are in demand.
This past summer the club sold Matt O’Riley to Brighton for £25million, which was a club-record fee, while they also earned big money from the sale of Kieran Tierney.
Right now Kuhn is being viewed as a “key man” in Rodgers’ side and the club aren’t interested in selling him if they don’t need to