021010-GRAND PRIX OF CHINA-LINYI-The F4 powerboats of Oskar Samuelson of Sweden of the Raibow team, left and David Del Pin of Italy of the 800 Doctor team collide and crash after the start of the F4 Powerboat Grand Prix of China, Linyi. It is the 3rd race of the season 2010. Picture by Paul Lakatos/Idea Marketing.