In what is likely to be a tough period for many clubs up and down the country due to the impact of the coronavirus, former Magpies stars will also find themselves in uncertain positions.
Here, out of interest, we've rounded up the ex-United players believed to be out-of-contract next month. Would you like to see any of these back at St James’s Park?
9. Sammy Ameobi
Although Ameobi has played a regular part in Nottingham Forest’s promotion bid, his future at the City Ground is under threat. | Getty Images Photo: Alex Davidson
10. Sylvain Marveaux
His time at FC Lorient is due to come to an end, that is despite winning his place back in the Ligue 2 club’s starting XI following a loan spell at Nancy in 2019. | Getty Images Photo: JEAN-SEBASTIEN EVRARD
11. Mapou Yanga-Mbwia
According to reports in France, Lyon have no intention of extending the 31-year-old’s contract, prompting talk of a potential return to Montpellier. | Getty Images Photo: ROMAIN LAFABREGUE
12. Wayne Routledge
Routledge’s time at Swansea is unlikely to stretch to a 10th year, although some reports in Wales believe the 35-year-old could be offered a coaching role. | Getty Images Photo: Stu Forster