It's rare for any fighter to retire while still the recognized world champion of a weight class. But to retire as an undefeated champion is unheard of. That unprecedented feat was accomplished on Saturday by UFC lightweight titleholder Khabib Nurmagomedov.
With a performance worthy of strong consideration as the pound-for-pound best in MMA today, UFC lightweight champion Khabib Nurmagomedov took one step closer to one day rubbing elbows with the greatest the sport has ever seen.
LONDON -- The International Tennis Federation is defending the chair umpire who gave Serena Williams three code violations during the U.S. Open final, saying his "decisions were in accordance with the relevant rules."