Cristiano Ronaldo, who left Manchester United for Real Madrid for a world record 80.0 million pounds ($125.5 million) transfer fee last year has hinted he could return to Old Trafford in the future. The 25-year-old World Player of the Year spent six seasons at Old Trafford, winning the Premier League three times as well as the Champions League. “Of course I miss playing for Manchester United,” Portuguese international Ronaldo said in an interview with Britain's News of the World newspaper. “I played there for six years and that's a long time. I am still interested in watching Manchester United and, you never know, maybe in the future I could return to play there. It's always possible. I am really happy at Madrid, and everyone knows this is my club, but of course I miss Manchester United, the boss, the players because I left family there.In my opinion, the Premier League and La Liga are the two best leagues in the world, but in England the players are stronger.”