Ajax coach Frank de Boer feels a Premier League move for Celtic defender Virgil van Dijk is too soon.
Arsenal manager Arsene Wenger is monitoring the Dutchman's situation at Celtic as he searches for suitable enforcements for his depleted defence.
"It is no surprise to me that he is being linked with clubs like Arsenal and Manchester United," De Boer told the Daily Record.
"They are both in the situation where they could use another top central defender and they are not easy to find.
"I am sure that he could be a success for any club in Europe but Celtic will know exactly what they have and no coach will ever want to sell in January.
"It is such a difficult window to sign players that you don't want to lose your best one during it.
"It would be good for him to win trophies in the SPL first before he thinks about anything else - it will all be a part of his education."
