Stephan Bonnar
Stephan Bonnar has never really been a serious threat to become light heavyweight champion during his career, but you might not have guessed that if you blindly looked back at the wins and losses on his record.
Aside from a doctor stoppage against Krzysztof Soszynski—a loss he has since avenged—Bonnar's only losses have come against eventual or former UFC champions. Still, Bonnar has never been able to pick up that big win to catapult him into the mix of contenders.