Top three pound-for-pound fighters

Updated: April 20, 2011, 4:04 AM ET
By Dan Rafael |

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, which are updated weekly.

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

Note: Results are through March 15.

Click here for Nos. 4-20. Insider