Sunderland boss Steve Bruce admits it could be a while before he gets a response from Sol Campbell.
The 35-year-old centre-back is a free agent following his release from Arsenal at the end of last season, and Campbell has met with both the Black Cats and Celtic.
Bruce told Sky Sports News: “We have had a long conversation with Sol, I’ve known the lad a long, long time.
“He’s obviously got some decisions to make.
“We’ve shown him around and shown him what we’ve got, so we will see what develops over the next 48 hours.
“But I think Sol is getting married next weekend and then is away on honeymoon so I wouldn’t have though there would be much before that happens.”