Whether it's Lionel Messi or Cristiano Ronaldo, any football fan would probably freak out at the opportunity of meeting either one of them.
Well, that's exactly what happened to one ball boy, with Messi actually shaking his hand on the way off the pitch.
Oh, and his reaction is so priceless that no other words need to be said.
Check it out:
It's brilliant, right?
Messi once again proved why he was the beating heart of the Barcelona team yesterday.
He scored a brace against Tottenham Hotspur in the Champions League, producing another performance that many, many people have praised.
What did you make of the video?
Let us know in the comments.