Mishaps from the 2012 London Olympics

Portugal’s David Joao Serralheiro Rosa crashes during the men’s mountain bike race at the 2012 London Olympics.  (Matt Rourke / Associated Press)

Spain’s Rudy Fernandez, left, collides with Russia’s Alexey Shved during a men’s basketball semifinal game in London.  (Victor R. Caivano / Associated Press)

United States’ Alise Post does a face plant as countrywoman Brooke Crain speeds past in a BMX cycling women’s semifinal run.  (Christophe Ena / Associated Press)

South Korea’s Hwang Woojin loses control of his horse Shearwater Oscar during the show jumping event of the modern pentathlon.  (John MacDougall / AFP / Getty Images)

Poland’s Lukasz Zygadlo crashes a barrier while chasing a ball during a men’s quarterfinal volleyball match against Russia.  (Jeff Roberson / Associated Press)

Kenya’s Hellen Onsando Obiri leaps to avoid Morgan Uceny of the United States during the women’s 1,500-meter final.  (Daniel Ochoa De Olza / Associated Press)

Matthias Steiner of Germany is crushed by the barbell after falling while trying to lift in the men’s +105kg weightlifting final at the London 2012 Olympics.  (Lars Baron / Getty Images)

Australia’s Kieran Govers, left, hits Germany’s Moritz Fuerste with his stick during their men’s field hockey semifinal match at the 2012 Summer Olympics.  (Eranga Jayawardena / Associated Press)

New Zealand’s Kurt Pickard, in black, and Ecuador’s E.A Falla Buchely, left, crash as Australia’s Khalen Young jumps over them during the BMX cycling men’s quarterfinal run during the 2012 Summer Olympics   (John Giles / Associated Press)

Brazil’s Wallace de Souza, left, crashes through a barrier and into the photographers’ bench in an attempt to save the ball during a quarterfinal volleyball match against Argentina at the 2012 Summer Olympics.  (Chris O’Meara / Associated Press)

From left, Jelle Van Gorkom of the Netherlands, Maik Baier of Germany and Tory Nyhaug of Canada collide during the men’s BMX cycling quarterfinals.   (Phil Walter / Getty Images)

South Korea’s Kim Hyunsung, below, collides hard with Brazil’s Rafael Pereira Da Silva as they compete for a 50-50 ball during their semifinal match at the London 2012 Olympic Games.  (Andrew Yates / AFP/Getty Images)

Edzus Treimanis of Latvia falls during competing in the men’s BMX seeding event at the London 2012 Olympics.   (Lindsey Parnaby / EPA)

Lazaro Borges of Cuba was caught off guard as his pole snapped into three pieces during a pole vault qualification attempt at the London 2012 Olympics.   (Quinn Rooney / Getty Images)

China’s Liu Xiang, center, falls at the start of his 110-meter hurdles heat.   (Daniel Ochoa De Olza / Associated Press)

Dominican Republic gymnast Yamilet Pena Abreu falls hard as she failed to stick her landing during the women’s vault qualifications.  (Julie Jacobson / Associated Press)

Japan’s Yoshiaki Oiwa falls off his horse in the cross country phase of the equestrian eventing competition.  ( John MacDougall / AFP / Getty Images)

Spain’s Felipe Reyes falls through a barrier and on top of photographers in a men’s basketball game against Brazil.  (Victor R. Caivano / Associated Press)

Gabrielle Douglas of the United States falls off the beam during the artistic gymnastics women’s beam final.  (Michael Regan / Getty Images)

This sequence of photos captures Australia’s Tom Slingsby falling from his boat while celebrating winning the gold medal in the men’s laser one person’s dinghy sailing competition.  (Gerry Penny / EPA)

Portugal’s Clarisse Cruz, right, falls during a women’s 3,000m steeplechase heat.  ( Adrian Dennis / AFP / Getty Images)

The ball hits Matthew Anderson of the United States as he falls to the floor during a preliminary volleyball match against Russia.  (Kirill Kudryavtsev / AFP / Getty Images)

Croatia’s Tina Mihelic falls from her dinghy in the laser radial sailing class at the London Olympics.  (William West AFP / Getty Images)

Denmark’s Lasse Norman Hansen crashes during the men’s omnium 15km scratch race cycling event.  (Odd Andersen / AFP / Getty Images)

Shamar Sands of the Bahamas falls after hitting a hurdle in the men’s 110-meter event.  (Morry Gash / Associated Press)