Canadian GP: Lewis Hamilton edges Nico Rosberg in practice one

Lewis Hamilton sets the pace as Mercedes dominate the first practice session at the Canadian Grand Prix.

Hamilton, in impressive form throughout, was 0.415 seconds quicker than team-mate Nico Rosberg.

Lotus's Romain Grosjean and Force India's Nico Hulkenberg made it a Mercedes-engined top four, ahead of Ferrari's Sebastian Vettel.