News of the World claims there have been held unofficial talks by the United board regarding the issue.
A United insider told News of the World: “Although people may talk of George Best, Denis Law and Bobby Charlton, they played in an era when such moves were impossible as shirts were numbered 1-11.
“Retiring the number 11 shirt would have no complaints from many United fans – though on current form Ryan’s departure looks to be quite a way off yet.”