Mercedes locked out another front row in Canada, as Lewis Hamilton edged out teammate Nico Rosberg to take pole position in Montreal.
Ferrari's Sebastian Vettel was third fastest after a late improvement, with Daniel Ricciardo joining his teammate on the front row.
Max Verstappen was fifth in the second Red Bull ahead of the Williams pairing of Valtteri Bottas and Felipe Massa.
We review the qualifying session in five tweets.
by Rachit Thukral