The experienced centre-half will see his current deal at Old Trafford expire at the end of the season, and it has been suggested that he will then take the opportunity to hang up his boots.
Ferdinand has refused to speculate on the decision he will take, with all options still open - with his former club West Ham United one of those to already express an interest.
United boss Sir Alex Ferguson is keen to see the 34-year-old pen an extension, with it his opinion that the former England international still has plenty of football left in him yet.
Ferdinand has hinted that he will put pen to paper, but has made it clear that he will not be rushing into making a choice.
"It is always good to hear the manager say things like that," Ferdinand told Inside United.
"But you have to take every week and month as it comes. The best thing I can do is to look at it at Christmas, and then again in the summer, to see how I'm feeling.
"But hearing the manager say things like that definitely puts a spring back in your step."