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The king retains his right to rule

Floyd Mayweather Jr. withstood the challenge from Oscar De La Hoya to remain at the top of the heap in Dan Rafael's pound-for-pound rankings for May.

Updated: May 22, 2007, 11:50 PM ET
By Dan Rafael | ESPN.com
Who is the world's best fighter, regardless of weight class? See my top 20 below.

Check back next week for the division-by-division rankings, from heavyweight to strawweight.

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

The rankings are updated on the second Thursday of each month.

Note: Results through May 9.

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