Captain Scott Brown hopes Celtic can hold on to Craig Gordon but admits the 34-year-old goalkeeper has a huge decision to make over his future.
Gordon is the subject of interest from English Premier League leaders Chelsea.
Brown says "there's always temptation" when clubs of that stature and financial clout come calling.
"It would be great for him to stay here, but it's understandable that people come in for him because he's been playing top class," said Brown.
Celtic have made it clear they do not wish to sell the 34-year-old.
"But it is up to Craig," said midfielder Brown.