McLaren look to take the battle to Red Bull in the opening practice session for this weekend's Canadian Grand Prix in Montreal.

Schumacher falls short of the Spaniard's time again, but is within a second of it.

Alonso lowers his benchmark to 1:19.981. Michael Schumacher is second, with six drivers on the board now.

Ferrari's twice world champion Fernando Alonso nips ahead with 1:22.158. Ricciardo a second slower with his next effort.

Daniel Ricciardo, again enjoying a practice runout in the Toro Rosso, sets the first time of 1:26.560. Sergio Perez is a little slower with the second timed lap of the weekend.

Nico Rosberg threatens to set the first lap-time - but then comes in. Jenson Button yet to emerge, likewise world champion Sebastian Vettel.

Lewis returns to the McLaren garage for a second time. Likely checking over some basic element of set-up.

The circuit mostly silent, but Lewis Hamilton is out on medium tyres in the McLaren.

Mark Webber concentrates intently as Red Bull work on their car. No need to rush today with only a few wispy clouds in the sky.

Mainly backmarkers out at present.

No times set as yet. Have a read of Will Gray's F1 blog.

The sun is shining in Canada as the first cars make their way out on to the circuit for a stint.

The 90-minute session underway.