Rio Ferdinand led the Red Devils in Tuesday’s goalless tie with Rangers at Old Trafford.
“As I explained last week, what we wanted was someone who was consistently available for us,” Ferguson told MUTV.
“Everyone recognises Nemanja Vidic would always be there. He has been fit all season and you don’t leave him out of the team unless you are going to rest him.
“He started the campaign as captain and it will stay that way.”
