Varela told The Sun: “It would be a dream to go back to Old Trafford. It would be a beautiful moment - I wait for this.
“Maybe we will get drawn to play Manchester United - we don't know. But if we do, it would be a dream.
“Maybe we will meet again soon. Maybe in the Europa League, maybe in the Premier League.
“I'm still only 26. I of course want to go back to the Premier League at some point.
“In the future, maybe I can come back and play for Manchester United - I hope.
“I would say thank you to the fans. I want to say thank you for a beautiful four years, thank you for your support."