Lando Norris asserts that "every competitor on the grid" would have attempted the move that caused renewed tension between himself and fellow driver the Australian during the recent race.
The Briton collided with Piastri on the corner exit of turn three at Marina Bay after contact with the leading car sent his car sideways.
This incident could potentially disrupt the carefully maintained harmony that the British team has successfully preserved between their two drivers through thoughtful management.
Before the race, the British driver was behind Piastri by 25 points in the points table, and narrowed that gap by only three points after taking the final podium spot behind the Mercedes driver and the Red Bull star, with his teammate following in P4.
The Briton maintained he had done nothing wrong in overtaking Piastri.
"Every driver on the grid would have done what I did," he commented. "If you criticize me for taking a racing gap, you shouldn't be in F1.
"My car was slightly too close to Verstappen, but that's racing. No major incident occurred, I'm certain I would have finished in front of Oscar regardless because he had the less favorable part of the track on the outer line.
"Of course I need to review it and the worst scenario I want is contact with my racing partner. I am the one who must avoid such situations. I would endanger my position just as much if similar things happened.
"I'll review it but the governing body obviously thought it was acceptable and the team did, as well."
The driver rejected he had been too forceful with Piastri. "I touched Max," he said, "meaning I wasn't forceful with my teammate."
Piastri expressed unhappiness about the collision. He said over the in-car communication that the squad's choice to take no action about it was "unjust."
Post-event, he was circumspect, stating he needed to review the incident before making additional statements.
"The primary issue is both vehicles making contact," he noted. "That's never what we desire, so I'll examine it in greater detail."
Piastri has previously been the driver to lose out in at least two controversial situations this year.
In Hungary, he was the leading McLaren driver early in the race but Norris was permitted to use a different strategy to overtake his partner, a choice that competitors have questioned.
And in Italy, the Australian was ordered to let Norris back past for second place after the British driver was delayed by a slow pit stop. Piastri complained that he thought there had been an understanding that a slow pit stop was just normal competition that had to be accepted, but acquiesced regardless.
Internally, he was unhappy about that situation, and he and the team held discussions to resolve it.
But questioned after Sunday's race whether he had worries that his teammate might be getting favoritism, Piastri responded: "None."
Did he believe the squad had been equitable all season?
"Ultimately, affirmative," Piastri said. "Might situations have been better at certain points? Yes, but ultimately it's a learning process with the entire team and I'm extremely satisfied that the intentions are positive, if that makes sense."
McLaren boss the Italian commented: "We will conduct detailed analyses, productive conversations and, similar to post-Canada, we'll come back more resilient and even more united."
The team principal explained that although the squad had reviewed the incident in its direct consequence, "this contact is, actually, a consequence of another racing situation that occurred between Lando and Verstappen."
He continued: "Piastri made some statements while he was in the cockpit but that's the type of character that we expect from our competitors. They have to make their position clear, that's what we require of them.
"The team's review needs to be extremely thorough, highly methodical, it needs to consider the viewpoint of our both competitors, and then we will form a shared understanding based on which we will see whether we can just confirm our initial interpretation or there's something else that we should decide.
"Whenever we start our discussions with the competitors, we always recall, as a premise: 'This is difficult'.
"Because this is the only matter in which, when you compete as teammates, actually you can't have identical objectives for the both competitors, because they want to pursue their personal goals. This is a core concept of the approach we take at McLaren.
"We need to be precise, because there's much at risk. That's not just the valuable points, but it's also the trust of our drivers in the manner we function as a squad, and this is, if anything, even more foundational than the championship standings."
The controversy deflected attention from the British team securing the team title for the second year running.
It is McLaren's 10th constructors' title, moving them ahead of their rivals in the historical rankings into second place after leaders the Italian team, who have claimed it on sixteen occasions since the competition began in the late fifties.
Their victory represents one of the quickest instances a team has accomplished this. It matches their rival's achievement in securing the title with multiple events remaining in last season, although that was a 22-race season compared with 24 this season.
McLaren's advantage has diminished as the season heads into its final stages. That is partly because to the nature of the latest tracks not suiting its strengths, and also because McLaren turned off the upgrade process earlier, while their rivals still have updates arriving to their cars.
That decision by McLaren was based on the fact that they were seeing reduced benefits in developing this vehicle, common when a concept has such an edge at the beginning of a season, and that they wanted to ensure they were ready for next year.
Norris, though, is fully conscious of the magnitude of his team's achievement, and the remarkable turnaround they have shown under Stella and chief executive officer their leader from just over two years ago, when they began the 2023 season near the rear of the grid.
"Another title is a wonderful achievement," he commented. "If you consider where we were previously, we have surpassed every squad in terms of progress in a time when it is more challenging to achieve with increased limitations and less wind tunnel time.
"In an era when it should be harder than before to dominate, that's precisely what the squad has accomplished and provided us, by a significant margin, the fastest vehicle on the grid.
"That's always a very nice thing to mention. It always brings satisfaction on your expression. But we've additionally excelled as a team in terms of drivers, between Oscar and me {pushing each other
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