Ranking the top pound-for-pound fighters (Nos. 1-5)

Who is the world's best fighter, regardless of weight class? See my top 20 below.

And don't forget to check out the divisional rankings, now updated weekly.

For a list of the current champions in all weight classes, click here.

En espaƱol

Note: Results through Dec. 17.

Click here for Nos. 6-20Insider