Manchester United captain Nemanja Vidic believes Cristiano Ronaldo could return to Old Trafford one day.
Ronaldo makes his first return to Old Trafford on Tuesday as his Real Madrid side meet United in the second leg of their Champions League last-16 tie.
And Vidic, who played alongside the Portuguese before his record £80million move to the Bernabeu in 2009, is optimistic they might be United team-mates once again even if Sir Alex Ferguson dismissed the prospect as a "false hope" at the weekend.
"It would be a big ask for many reasons. I would love to see Cristiano here. I could see it," he told the Sun.
"He is a United supporter. Even though he left he still follows United and still misses the club and the environment here."
Vidic also rates Ronaldo higher than Barcelona superstar Lionel Messi.
The Serbian defender, 31, said: "They are both great players but, in recent years, Barcelona have won more trophies and I think that is why people have put Ronaldo to one side.