Not for the first time this year, pole sitter Hamilton had a sluggish getaway off the line and was immediately overhauled by the fast-starting Ferrari of Sebastian Vettel who had lined up third on the grid.
The Briton also came under pressure from his Mercedes team-mate on the outside, with Rosberg eventually forced to take run-off area after tangling with Hamilton.
"It was a hard manoeuvre," Wolff said of the mishap, which dropped Rosberg to P9. “Lewis said that he had understeer, that's what I would say. From the team's perspective if you're starting one and two and you come out of Turn 1 two and nine that is not pleasant. But I guess I have a deja vu, we are having these discussions after every race…”
And when asked if he needs to ensure both drivers think about the best result for the team after Rosberg's willingness to yield to Hamilton in Monaco, Wolff said it is difficult to preempt such an incident.
"The question is how much can you really manage it from the outside? Turn 1 in Canada is a difficult one and there is a concrete run-off area. If there is a wall then probably we would not have the discussion. But then if you are on the inside you dictate the line.”