Oscar Piastri's furious team radio act as tension boils over at McLaren
A frustrated Oscar Piastri appeared to cut off McLaren team boss Zak Brown mid-sentence after a frustrating Singapore Grand Prix, signalling a rift within the team.
Piastri's tension with McLaren boiled over when he interrupted Brown's radio message congratulating him on his race and the team's back-to-back constructors' championships.
"Oscar, back-to-back champions. Good race, tough race. Thank you...," could be heard from Brown before the broadcast of Piastri's onboard feed went silent.
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Oscar Piastri appears to disconnected his radio from the cockpit after the Singapore Grand Prix. F1
Piastri had seemingly disconnected his radio from the cockpit before exiting his car.
Multiple clips of the incident have since gone viral on social media.
The Aussie was left fuming at his team and teammate Lando Norris following a contentious first-lap incident in Singapore.
Starting third on the grid, Piastri was immediately knocked back to fourth after Norris made an aggressive pass on the opening lap, clipping the championship leader's car and forcing him wide off the racing line.
As Piastri tried to sweep around the outside of Verstappen at Turn 1, Norris snuck up the inside to run wheel-to-wheel with Piastri.
Facing a slam into the back of Verstappen, the Brit jolted his car right, bumping Piastri.
Piastri made his fury public, unleashing a clear outburst over the team radio during the race.
"Yeah, I mean, that wasn't very team-like, but sure," he said.
Moments later, he continued to vent his frustrations.
"So, are we cool with Lando just barging me out of the way?" he said.
"What's the go there?"
Despite Piastri's protests, both the FIA and McLaren decided that no action would be taken against Norris, forcing the Melburnian to settle in behind his teammate for the remainder of the race.
Oscar Piastri on track in Singapore. Clive Mason via Getty Images
"Mate, that is not fair. I'm sorry, that's not fair," Piastri said in response to the news.
"If he has to avoid another car by crashing into his teammate, then that's a pretty shit job of avoiding."
The friction led to awkward post-race scenes that overshadowed the team's celebration of defending the constructors' championship with six races remaining.
Images of the McLaren garage celebrating on the podium immediately after the race have begun circulating online, with Piastri missing.
Piastri did eventually join the team celebrations later after completing his media obligations.
Lando Norris and Oscar Piastri celebrate after McLaren clinched the constructors' championship. LAT Images
While normally a cool character, Piastri was noticeably reserved when speaking with reporters after the race.
"Obviously, a difficult race, difficult first lap," he told reporters.
"I've not seen the replay, obviously, I just know from in the car, so I'll go and have a look.
"It's a great night for the whole team ... obviously not the race I was looking for, but good for the whole team, and tonight was a culmination of a lot of hard work over not just this year but lots of years.
"Really proud moment for me to be a part of that."
When asked if he agreed with Brown's claim that the McLaren duo "race hard but race clean", a clearly conflicted Piastri briefly paused before answering.
Oscar Piastri fronts reporters following the dramatic Singapore Grand Prix. Getty
"Um, yes, I think we do," he said.
"I don't think there was any intention of contact, but there was, and I need to look at the replay and see exactly what has happened."
Following a second straight grand prix yielding disappointing results, Piastri's championship lead was slashed to 22 points.
