12 June,2010 07:40 AM IST | | Agencies
Defending drivers' champion Jenson Button topped the times in yesterday's opening free practice ahead of Sunday's Canadian Grand Prix.
The McLaren driver, chasing his second win of the season, posted a time of one minute 18.127 seconds ahead of seven-time champion Michael Schumacher of Mercedes.
Lewis Hamilton was third quickest in the second McLaren followed by German Nico Rosberg in the second Mercedes.
