Lionel Messi is 24 years old (shares a birthday with my brother, in fact) and yet already has a case as a the greatest footballer of all time. By the time his career is over, hopefully at least ten years down the line, he will have a case as the greatest ATHLETE of all time.
Messi recently became Barcelona's all-time leading scorer with 234 goals, which of course has been immortalized almost instantly on the internet. Watch it now before Saturday, when Messi next plays and will inevitably score again, making the whole thing seem quaintly outdated.
(N.B. the music in this video is as terrible as Messi is talented.)