Leclerc brought out the red flags when he hit the wall at the second chicane with 45 minutes remaining, causing extensive damage to his Ferrari.
George Russell put his Mercedes on pole position in Canada for the second year in a row on Saturday with Red Bull rival Max Verstappen alongside on the front row.
George Russell took Mercedes' first win of the Formula One season in Canada on Sunday while McLaren's Oscar Piastri went 22 points clear in the championship after teammate Lando Norris smashed into him and retired.
Red Bull spoke to Formula One's governing body FIA before the Canadian Grand Prix to warn them that Max Verstappen's rivals might try and lure the Dutch driver into a one-race ban, according to team boss Christian Horner.
Max Verstappen sees no need to change the way he goes racing despite the threat of a race ban hanging over him at the Canadian Grand Prix.
George Russell said he was driving better than ever and ready to fight for a Formula One championship with Mercedes after taking the team's first win of the season in Canada, but this year still looks a long shot.
Kubica won the race in his fifth attempt, his first three in the second tier LMP2 category, to become Poland's first overall winner since Le Mans was first staged in 1923.
Max Verstappen claimed his sixth victory from nine races this season and the 60th of his Formula One career.
Triple Formula One world champion Verstappen missed out on pole because he set his time of one minute 12.000 seconds after his British rival in a drama-filled qualifying session at the Circuit Gilles Villeneuve.
As impressive as those results have been, Red Bull team principal Christian Horner took the opportunity after the race to issue a scary warning that his team is capable of winning every grand prix this season.
Max Verstappen clinched the Canadian GP, but it was a messy affair as he reached the finish line with the bloody remains of a bird!
Max Verstappen put Red Bull on pole position for the Canadian Grand Prix with Alpine's Fernando Alonso leaping onto the front row alongside the Formula One championship leader in a wet qualifying on Saturday.
'It's been ultimately a really great race between two different teams and it ends with a bit of a ... negative. It does kind of feel like a deflated win'
Australian Daniel Ricciardo celebrated his first Formula One victory on Sunday in a Canadian Grand Prix that put Red Bull back on top of the podium and dealt Mercedes a first defeat of the season.
Max Verstappen took pole position on Saturday in a wet qualifying for a Canadian Grand Prix
Formula One championship leader Nico Rosberg put Mercedes on pole position for the Canadian Grand Prix on Saturday, with team mate and closest rival Lewis Hamilton having to settle for second place on the grid.
Formula One champion Lewis Hamilton crashed into the tyre wall but still stayed top of the timesheets after a rain-lashed Canadian Grand Prix practice on Friday.
The Canadian Formula One Grand Prix was halted after 25 of the scheduled 70 laps by torrential rain on Sunday.
Even though both the drivers finished inside the top 10 Force India chairman Vijay Mallya said he had expected the Canadian Grand Prix to yield more points for the Silverstone-based outfit.
McLaren's Lewis Hamilton timed his final run to perfection to snatch pole position for the Canadian Formula One Grand Prix on Saturday and shatter Red Bull's run of supremacy.
World championship leader Lewis Hamilton took pole position for Sunday's Canadian Grand Prix after pipping BMW-Sauber's Robert Kubica with the last lap of qualifying on Saturday.
Formula One championship leader Lewis Hamilton wants Sunday's Canadian Grand Prix to be a re-run of last year's race but Robert Kubica is hoping for something very different. The two drivers left their mark on the 2007 race, with McLaren's Hamilton taking his breakthrough first Grand Prix win in Montreal while BMW Sauber's Kubica suffered the biggest crash of his career.
Formula One world champion Lewis Hamilton won the Canadian Grand Prix on Sunday in a Mercedes one-two with title rival Nico Rosberg.
This is the German's 50th career win
Sebastian Vettel handed Ferrari their first Canadian Grand Prix pole position since Michael Schumacher in 2001 on Saturday while Formula One championship leader Lewis Hamilton qualified fourth for Mercedes. Vettel, 14 points behind the Briton, will start from the front for the fourth time at the Circuit Gilles Villeneuve after setting a track record of one minute 10.764 seconds on a sunny afternoon.
Lewis Hamilton survived another first corner clash with Mercedes teammate Nico Rosberg on Sunday to take a fifth Canadian Grand Prix victory and cut the German's championship lead to nine points.
Fernando Alonso warned McLaren they were making him look like an amateur.
Sebastian Vettel offered one of Formula One's more exotic excuses on Sunday by saying he had lost time in the Canadian Grand Prix by saving two seagulls from being flattened by his Ferrari.
Ferrari's Sebastian Vettel refused to blame his team for a wrong strategy call after the four time World Champion missed out on an elusive first win of the Formula One season in Sunday's Canadian Grand Prix.
The German, Canadian and Brazilian grands prix were listed as subject to confirmation on a record-equalling 21-race provisional calendar for 2017 published by Formula One's governing body on Wednesday.
Vettel, who won from pole position last year in Canada to revive Ferrari's title hopes, will be hoping for the same on Sunday with world championship leader Hamilton, chasing a record equalling seventh win in Montreal, starting alongside him.
It was Hamilton's third victory of the season and also his third in a row at the sun-bathed but windswept Circuit Gilles Villeneuve.
Triple world champion Lewis Hamilton produced a moment of Montreal magic on Saturday to put his Mercedes on pole position for the Canadian Grand Prix and equal Ayrton Senna's career haul of 65.
The Sahara Force India celebrated its 100th race in style, scoring seven points with Paul Di Resta and Adrian Sutil finishing in seventh and 10th places respectively at the Canadian Grand Prix in Montreal.