Video: Alberto Contador's Giro d'Italia stage 6 crash

Alberto Contador's ambitions for Giro d'Italia victory have been severely hampered after the race leader fell heavily on his left side and dislocated his shoulder in the final 200 metres of stage 6. Video footage of the crash shows a spectator on the left hand side of the road reaching over the barriers in an attempt to get a photograph of the peloton and knocking a Nippo-Vini Fantani rider to the ground which then causes 'shockwaves' to ripple through the bunch.