5. Tommie Smith & John Carlos - Summer Olympics - Oct. 16, 1968
American sprinters Tommie Smith (center) and John Carlos (right) raise their black-gloved fists on the Olympic medal podium in Mexico City to signify Black Power. Smith, the gold medalist in the 200-meter race, and Carlos, the bronze medalist, were kicked out of the Games for their overtly political statement.
6. Maxwell Fornah & Victor Musa - Sierra Leone - April 6, 2006
The members of the Single Leg Amputee Sports Club of Sierra Leone chase for the ball in Freetown. A brutal civil war left more than 6,000 amputees in Sierra Leone
7. Matthias Steiner - London Olympics - Aug. 7, 2012
Defending Olympic weightlifting champion Matthias Steiner of Germany lost his balance while trying to lift about 432 pounds and was hit in the neck by the barbell. He got up on his feet and waved to the crowd but later withdrew from the competition.
8. Kyle Whitaker - Dodge National Circuit Finals Rodeo - Mar. 17, 2005
Kyle Whitaker of Chambers, Neb., loses his boot as he is bucked off Dump Wagon at the Circuit Finals Rodeo in Pocatello, Idaho. Whitaker would finish 22nd out of 24 competitors in the saddle bronco riding

Source: http://learni.st/users/xiggi/boards/69279-the-50-most-iconic-sports-photographs-of-all-time