Chael Sonnen, one of the most charismatic fighters in the history of MMA, has announced his retirement.
This abrupt departure comes in wake of a failed drug test for anastrozole and clomiphene, both estrogen inhibiting drugs which are banned by the World Anti-Doping Agency.
Sonnen was scheduled to face Vitor Belfort at UFC 175, a late replacement for original opponent and TUF rival Wanderlei Silva, who, ironically, was booted from the show for refusing to undergo random drug testing.
"If it puts me out of compliance 20 more times, then let's stop. I will remove myself. There is going to be a day where I don't have the title of fighter. That was always going to happen. I never want there to be a day where I don't have the title of parent, father and husband. My health has got to come first." said Sonnen, who was taking the anti-estrogen drugs for fertility reasons, as well as to as lessen the side-effects of going off of TRT, which he's done in compliance with the widespread ban of the substance.
Sonnen's flamboyant personality made him a fan favorite worldwide. His sagaciousness outside the cage was well and matched by his dexterity inside. Chael had a background in Greco-Roman wrestling and fought with usually unmatched strength and physicality.
Chael Sonnen might be best known for his Fight-of-the-year winner against longtime Middleweight champion Anderson Silva. Silva submitted Sonnen in round five with a sneaky triangle armbar, but Sonnen had dominated the Brazilian legend in the subsequent rounds.
Sonnen's record desists at 28-14-1, with victories against Mauricio "Shogun" Rua, Yushin Okami, Nate Marquardt, Brian Stann, and Michael Bisping.
Upon his retirement, at age 37, he'll go into the history books as a one-of-a-kind fighter and athlete.