It is often said that the transition from the second to third weeks of racing in a grand tour is the toughest challenge, mentally if not physically. The Giro d'Italia thunders on, still without a runaway winner. Joaquim Rodriguez and Ryder Hesjedal trade turns in the maglia rosa while Ivan Basso and Michele Scarponi sit within striking distance of the overall race lead. Into the final week of racing, it's anyone's Giro.