11. Vladamir and Vitali Klitschko
Accomplishments: Vladamir: World Heavyweight Champion; Vitali: World Heavyweight Champion
These behemoth Ukrainians are far from weak, as neither of these heavyweight bruisers has lost a bout since 2004. Combined, they currently hold every single major championship belt for the heavyweight boxing division. Unfortunately, the world will not get to see the brother vs. brother unification match it so badly craves, as both brothers have said many times that they will never fight one another. And why bother? Both are already major celebrities and have achieved great success outside the ring, with Vitali winning a seat in the Ukraine parliament and Vladamir successfully bedding a B-List celebrity (Hayden Panettierre).