The Celtic legend has raved about Ajer, with the former Scotland international defender outlining his attributes.
The 61-year-old has also suggested that Ajer should stay at Celtic next season even though he is reportedly in demand.
Sporten reported in March of Tottenham’s interest in the Norway international, while 90min claimed in May that Leicester City, Manchester City, Wolverhampton Wanderers, Everton, AC Milan, Paris Saint-Germain and Borussia Dortmund want the youngster.
Aitken told The Scottish Sun about Ajer: “His ability to carry the ball out from the back is an incredible asset. There is no question he has all the hallmarks of the modern centre-half.
“That ability to come forward and get an attack going is a real string to his bow, while his athleticism is very much in keeping with what is needed now inmodern football. He is an exciting talent.”
The former Celtic star added: “I don’t think anyone would stand in his way if there was an offer for him to go on and further his career.
“But at the same time there is no rush. He’ll know if he keeps doing what he is doing, he’ll have a fair few choices on the table.”
Ajer is a very talented and promising young defender who has progressed well at Celtic over the years and is ready for a step-up to the Premier League.
However, with Celtic aiming to make it 10 Scottish Premiership titles in a row next season, the 22-year-old – who can also operate as a defensive midfielder – should stay put at Celtic Park.
After all, the Norway international could write himself into the history books, and since he is only 22 years of age, he will have top clubs from England coming for him next summer as well.