The report claims that the club’s sporting director Nikos Dabizas will use a trip to the UK to hold talks with the Bhoys over a potential move for the midfielder.
Kouassi joined Celtic from Krasnodar in January 2017. He was signed by former Hoops boss Brendan Rodgers for a reported fee of £3 million but the 21-year-old has struggled to justify his price tag.
He played just five games in all competitions last season, and probably does not feature in Neil Lennon’s immediate plans.
The report does not specify whether Panathinaikos want him permanently or on loan. He is still young, and a loan move away from the club could do a world of good for him.