Mercedes on brink of history in Canada

Mercedes stand on the brink of making Formula One history on Sunday after again leaving their rivals in the shade in practice for the Canadian Grand Prix.

For the 11th time in 20 practice sessions this season, Lewis Hamilton finished top of the timesheet, spearheading a one-two with team-mate Nico Rosberg who had to settle for second best at the Circuit Gilles Villeneuve.