Nico Rosberg believes Lewis Hamilton is "driving at his best" this season despite Mercedes' woes as the team continues to battle with the development of the W13 car.
Mercedes' campaign has been plagued with bouncing issues following the introduction of new restrictions for the 2022 season, with the German team among many on the grid to suffer with 'porpoising'.
A new FIA directive was issued ahead of the Canadian Grand Prix, allowing the use of a second floor, following complaints from a number of drivers – although the actions have led to backlash from Red Bull chief Christian Horner.
Mercedes did show significant signs of progress in Montreal and had a consistent race, whereas Ferrari had Charles Leclerc starting from the back for an engine penalty and Red Bull lost Sergio Perez with a technical problem.
Hamilton came third for his second podium finish of the season and it marked the first time since the opening race in Bahrain where he has finished above team-mate George Russell, who came fourth.
Seven-time world champion Hamilton has faced scrutiny this season amid the team's struggles but his former team-mate and title rival Rosberg insists that he has been at the top of his game over the past few months.
"Lewis is driving at his best. He has just had an unbelievably unlucky season with all these different things going against him," he told Sky Sports.
"This was a normal weekend and he delivered in the usual awesome way.
"That driver pairing is so strong, incredible, but, make no mistake, Lewis hates passionately to ever come second to a team-mate, so he will be ultra-motivated and pushing hard internally."
Mercedes' car showed signs of promise in Canada but Rosberg has warned them not to get ahead of themselves, as they remain off the pace of their rivals heading into the British Grand Prix on July 3.
"The car in the race was really decent. I thought it was so awesome how George right after the start made headway, passing one car after another down into the hairpin," he added.
"I think they are making progress but there is still some way to go to Ferrari and Red Bull. They can't win at Silverstone, they are still too far away."