#2 Chael Sonnen
With a career spanning close to 20 years and over multiple promotions, Chael Sonnen is one of the most dominant forces in mixed martial arts history. Competing in the Light Heavyweight division, Sonnen has 29 wins as opposed to 15 losses, having picked up some of the most impressive victories against some of the toughest opponents.
On the flipside, most of Sonnen’s career was a tug-of-war battle with controversies. Post his UFC 117 loss to Anderson Silva (which was one of the most hyped events), Sonnen was tested positive for highly elevated levels of testosterone.
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That, however, was just the tip of the iceberg for Sonnen, who later found himself convicted in a money laundering case in association with a real estate deal he oversaw in his native town of Oregon. This case disqualified him from running for political office.
However, his ultimate fall from grace came when his system was found to contain multiple banned substances such as HGH, hCG and EPO, which he claimed that he used to impregnate his wife! This particular event forced Sonnen into an early retirement in 2013! Sonnen is definitely heel material, despite not being as big and hefty as Brawn Strowman!