Celtic are planning to hold talks with Dedryck Boyata when he returns from his break following the World Cup.
The defender has been granted additional time off after helping Belgium reach the semi-finals in Russia, with the Red Devils claiming third place after beating England in the play-off.
The 27-year-old centre-half is due to fall out of contract next summer and Celtic are eager to tie Boyata down to a new deal.
There may well be interest in the former Manchester City man following his performances at the World Cup, with Serie A outfit Napoli and Premier league newcomers Fulham among those who have already been linked.
Despite the speculation, Celtic remain hopeful Boyata can be convinced to sign an extension and manager Brendan Rodgers intends to hold discussions with the defender when he returns from his summer break.
Boyata has been with Celtic for three years after the Glasgow giants snapped him up in a reported £1.5million deal from City in June 2015.
Celtic can expect to make a significant profit on Boyata if they are forced into a sale despite the fact he has entered the final year of his contract, but ideally the Parkhead outfit are keen for him to remain at the club.
Celtic take on Armenian outfit Alashkert in the second leg of their Champions league qualifier on Wednesday and appear well placed to move into the next qualification round after a 3-0 win in the first leg away from home.
Celtic are 5.00 to win 3-0 on Wednesday or 29.00 to win 5-1.