Manager Steve Bruce is happy to wait for Sol Campbell to decide whether he wants to join Sunderland.
Bruce held talks with the free agent defender last week and is keen to take Campbell to Wearside.
The 35-year-old is available on a free transfer after his short-term deal with Arsenal expired at the end of the last Premier League season.
The Black Cats, Celtic and Arsenal are all reported to have offered Campbell a contract for next season and Bruce has now revealed that the ball is now firmly in the former Tottenham defender's court.
"He is somebody we are interested in and we hope we can do a bit of business," said Bruce.
"He's obviously got big decisions to make and we wish him well. He's getting married next week and then off on honeymoon and then I think he will give an answer to all the respective clubs when he comes back.
"In the meantime because of the indecision I'm still looking to see what is out there.
"He would be an asset to the football club because his end of season form and fitness was terrific, so he could give us that stability that we want."
Campbell impressed after rejoining Arsenal midway through the last campaign following an abortive spell in League Two with Notts County