Lionel Messi at his best

If you like football and want to know about the footballer everybody is talking about these days, just click on the link below and  leave the answers to the following questions in a comment!
  The best Lionel Messi

1. Why was last Wednesday's game important for Messi?
2. What is a "brace"?
3. Who are the top three scorers in the history of the Champions League?
4. How old was Messi when he scored his 49th Champion League goal ?
5. Who wasn't so enthusiastic about what Messi did last Wednesday? Explain why.