Lewis Hamilton topped the timing charts for Mercedes in the second practice session of the Canadian GP, just ahead of teammate George Russell.
Hamilton said ahead of the weekend that the team had taken confidence from their first double podium of the season last time out at the Spanish GP, and their drivers were once again looking competitive around the Circuit Gilles Villeneuve.
The second practice session was brought forward and extended by 30 minutes after an issue with the circuit’s CCTV system during FP1 meant that the cars were unable to get out on track following a red flag three minutes into the session.
The teams had a better chance to get to grips with the circuit in the elongated session, as Carlos Sainz completed the top three for Ferrari, while Fernando Alonso was fourth as Aston Martin analysed the host of new upgrades they have brought for this race.
Max Verstappen was sixth for Red Bull, behind the second Ferrari of Charles Leclerc.
Rain began to come down at the end of the session with a number of drivers going out on the intermediate tyres, with wet weather likely in FP3 and qualifying.
Alpine had yet another difficult session in Montreal following the retirement of Pierre Gasly early in FP1, with Esteban Ocon suffering a water leak which will leave the team with work to do ahead of the Saturday sessions.
Nico Hulkenberg was the other retiree during the session, after his Haas seemed to have a brake problem which saw plumes of smoke coming off the car and leaving the mechanics with an overnight fix-up on their hands.
Several drivers, including Oscar Piastri and Sergio Perez, took the first trips to the infamous Wall of Champions, while other drivers had to nurse their cars to the pits at the end of the session as torrential rain began pouring down.