Celtic target Jung Ho-Yeon is 'not good enough' to join the Hoops according to his own club manager in South Korea.
And Gwangju FC boss Lee Jung-Hyo also claimed Celtic's three South Korean players have all failed to adapt so far to life in Scotland.
Celtic were linked last week for a move for a fourth South Korean with 23-year-old midfielder Jung reportedly monitored by Parkhead scouts
He helped his club win promotion to the K-League last season and has played 18 times for Gwangju this term.
However, any move to Glasgow would come too soon according to his boss Lee.
He said: " “I haven’t heard anything, but Jung doesn't have the quality to go to Celtic.
"I hope he grows up, improves and eventually goes.
"But in its current situation, there is a high probability that he would come straight back.
"He needs to develop more in terms of skill and technique to be considered for a move to Europe."
And Lee also claimed that Celtic's South Korean stars are struggling to settle. Celtic have Yang Hyun-jun, Oh Hyeon-gyu and Kwon Hyeok-kyu in their squad although none of them are certain starters.
But Lee stated: "Right now, those three players at Celtic are not adapting. They still need more time."