The transfer that might properly develop into one of many defining moments of the season got here initially of lap 67 of the 70-lap race.
Norris had pushed properly on an inverted technique, beginning on the onerous tyre from seventh on the grid and working lengthy to his first pit cease, to come back into competition for the ultimate podium place with Antonelli and Piastri.
Norris had been inside a second of Piastri, and with use of the DRS overtaking assist, for a number of laps and on lap 66 dived down the within of his team-mate on the hairpin to take fourth place.
Piastri obtained the cut-back on Norris out of the nook they usually drove down the again straight in direction of the ultimate chicane facet by facet, Piastri on the within.
Approaching the final nook, Norris braked sooner than Piastri, with the goal of getting a faster run by the chicane and trying a transfer into the primary nook.
However Piastri held his line on the pit straight, and as Norris closed on him, his proper entrance wheel and entrance wing bumped into the again of the rival McLaren.
Norris retired on the spot with damaged entrance suspension however Piastri was in a position to proceed as the protection automotive got here out, and led the pack to the chequered flag.
Norris’ engineer Will Joseph requested Norris over the radio whether or not he was all proper and the Briton replied: “Yep, I am sorry. It is all my unhealthy, all my fault. Unfortunate, sorry. Silly from me.”
The transfer had echoes of the same incident between McLaren team-mates in Canada, when Lewis Hamilton and Jenson Button collided in kind of the identical place at this race in 2011.
However the incidents have been completely different. In 2011, Hamilton had a few of his automotive alongside Button, who moved over barely. This time, Norris didn’t have house to edge alongside and appeared to misjudge the manoeuvre.
With 14 races to go, it’s removed from a deadly blow to Norris’ title hopes, however it makes his life a lot tougher in opposition to a team-mate who on steadiness has had the sting on him to this point this season.