Beckham had to wait seven years before returning to Old Trafford when he played for AC Milan.
The former England star said: “When you go back, you enjoy the occasion, of course, and I am sure it will inspire Cristiano.
“Many things inspire great players and him going back will be a special night for him.
“The fans love him and it will be a great occasion.”
Will Ronaldo end United's hopes? Or will emotion get to the Real star? Give us your shout below...