Lewis Hamilton: Canadian Grand Prix is real unknown

The Canadian Grand Prix, which is live across the BBC, is famous for producing eventful races

Canadian Grand Prix

Venue: Circuit Gilles Villeneuve Date: 7 June
Live on BBC One (18:25 BST-21:00) and Radio 5 live (18:30-21:00)

Lewis Hamilton says he does not know what sort of challenge to expect for victory in the Canadian Grand Prix.

The Mercedes man took pole from team-mate Nico Rosberg by 0.309 seconds, with Ferrari's Kimi Raikkonen third.

But speed shown by Ferrari during their race preparation in Montreal has left Mercedes questioning how strong a challenge they will face in the race.

Hamilton said: "Ferrari have picked up their pace this weekend. The race is a bit of an unknown."

The champion leads Rosberg by 10 points in the drivers' championship standings ahead of Sunday's race at 19:00 BST.

Hamilton and Rosberg will likely only have to be concerned by Raikkonen, as his team-mate Sebastian Vettel qualified 16th following an engine problem and has been hit with a five-place grid penalty for infringing safety regulations.

Andrew Benson, Chief F1 writer in Montreal