Wasgij Original Puzzle 44 Summer Games! (1000)

Summer games! (1000 pieces) Everyone is ready, ready to go, and off we go at the Wasgij Summer Games. The crowd in the stadium rises, the press and the cameras line the track. The athletes are... Oh - Oh! They're running in all directions! Something unexpected shakes our steeplechasers. What could the athletes have seen that distracts them so much? Has the training paid off, or is there an unexpected competitor ready to go for gold? This is the scene to puzzle over.