Lionel Messi is the second place in Facebook fans ranking, but first in the lowest duration to get such number of fans.

Messi is the most junior(according to joining date) athlete among the top ten favorite athletes in Facebook.

Athlete	Sport	Fans in FB	In FB Joined on
C. Ronaldo	Football	60,274,869	6th May, 2009
Lionel Messi	Football	48,033,519	10th Dec,2010
David Beckham	Football	29,150,690	6th May, 2009
Michael Jordan	Basketball	23,817,809	3rd April, 2009
Kaka	Football	23,477,568	16th May, 2009
Kobe Bryant	Basketball	16,693,216	3rd April, 2009
LeBron James	Basketball	14,802,829	3rd April, 2009
Andres Iniesta	Football	14,357,223	25th Sept, 2008
Neymar	Football	13,388,531	7th March, 2009
Roger Federer	Tennis	13,289,792	9th April, 2009