Mercedes looked to have finally fixed the issue after the Spanish Grand Prix.
Articles by Sam Cooper
The McLaren CEO seemed to criticise Daniel Ricciardo, saying he had "not met our expectations."
There was reportedly a heated meeting between the team bosses in Canada.
Ferrari were forced to react quickly when the Safety Car was deployed as Carlos Sainz approached the pit lane.
It comes as part of a new mandate that two FP1 sessions for each team must be driven by rookies.
Daniel Ricciardo finished in P11 while Lando Norris was all the way down in P15.
Sebastian Vettel pitted very early during the Canadian Grand Prix but it backfired.
A slow pit stop sent Charles Leclerc to back of the second DRS train he encountered in Montreal.
Lewis Hamilton stepped onto the podium for the first time since the opening race in Bahrain.
Both Haas cars will be starting from the third row in Sunday's Canadian Grand Prix.
Both Ferraris failed to cross the line last time out in Baku with both exiting for different reasons.
Instead of earning the first pole of his career, Carlos Sainz finds himself behind Fernando Alonso.
Otmar Szafnauer said the result showed that sometimes experience wins over youth.
He made the vow with a cheeky smile across his face.
Max Verstappen earned P1 while Fernando Alonso reached the front grid for the first time since 2012.
Speculation has been growing about the Canadian's future in the sport.
It was a wet final session ahead of Saturday's qualifying.
The seven-time World Champion was visibly in pain as he exited his car in Baku.
Lewis Hamilton recommended switching focus to next year's car as he believes not much more can be done for the W13.
Max Verstappen topped FP1 in Canada for the first time since the season-opening Bahrain Grand Prix.
Mick Schumacher's race engineer has been describing how he approaches being a driver.
John Watson said Lewis Hamilton should spend "less time in the air and more time in the gym."
Ever wondered what life was like inside the garage during a race weekend?
Mattia Binotto also said he believed that the "guys need some more experience."
Charles Leclerc has now gone five races without a win.