World athletics championships

Portugal's Nelson Evora in action on his way to winning the gold medal in the final of the men's triple jump. Photograph: Thomas Kienzle/AP

Russia's Yelena Isinbayeva prepares for the pole vault, she went on to win gold. Photograph: David J. Phillip/AP

Sprinters spring from the starting blocks during a 100m heat. Photograph: Robert Ghement/EPA

Robert Harting of Germany rips his shirt off in celebration after taking second place during the men's discus final. Photograph: Alexander Hassenstein/Getty

Japan's Minori Hayakari lies on the track after dropping out in the 3,000m steeplechase heats. Photograph: Kimimasa Mayama/EPA

DeeDee Trotter of the USA sports a 'Test Me I'm Clean' wristband as she prepares for the start of her 400m semi-final. Photograph: Kerim Okten/EPA

Yumileidi Cumba of Cuba waits to compete during the women's shot put qualification on day two of the championships. Photograph: Alexander Hassenstein/Getty

Ethiopia's Kenenisa Bekele, centre, on his way to the gold medal in the men's 10,000m final. Photograph: Thomas Kienzle/AP

Andre Hohne of Germany reacts to being disqualified near the end of the race by diving into a steeplechase water jump during the men's 20K walk. Photograph: Alexander Hassenstein/Getty

Cyprus's Kyriakos Ioannou celebrates during the men's high jump final. Photograph: Adrian Dennis /AFP

Sand flies into the air following an attempt in the long jump qualification. Photograph: How Hwee Young/EPA