Here's a nice example of a photographer slowing down their shutter speed to create a sense of motion in a still image. It works really well with the white uniforms and the black background.
Adrian Dennis/AFP - Getty Images
Korea's Nam Hyunhee (L) competes against Italy's Giovanna Trillini during the Women's individual Foil semi-final 1 match on August 11, 2008 as part of the 2008 Beijing Olympic games. Nam Hyunhee won 15-10.