Ricciardo disqualified from Singapore qualifying

Lewis Hamilton's fourth-placed finish at Singapore was only third time he has failed to finish on the podium this seasonMore

Lewis Hamilton's fourth-placed finish at Singapore was only third time he has failed to finish on the podium this seasonMore

Daniel Ricciardo's eighth on the grid for the Singapore Grand Prix is under threat as stewards investigate a possible breach of MGU-K power output.

The MGU-K is part of an F1 car's energy recovery system.

The electrical aspect of the power unit is limited to 120kw (161hp), however, FIA technical delegate Jo Bauer has reported that a reading above that figure was taken during Q1 in qualifying.

The result will be a blow to Renault, who had delivered both cars through to Q3 and qualified alongside its main midfield rival McLaren.

Hulkenberg will move up to eighth ahead of Lando Norris, with Antonio Giovinazzi now starting in the top 10 for Alfa Romeo but with a free choice of tire compounds after dropping out in Q2.

Ricciardo has been granted permission to start the race by the stewards - a formality, given that the Australian has set times well inside the 107 percent requirement all week so far.

Ricciardo could have been excluded from the race weekend altogether but, given his competitive lap times during practice, the stewards ruled that he can start at the back of the grid. The Aussie had qualified his Renault in a solid eighth place, but the stewards later deleted his lap time because his vehicle had breached the technical regulations.

"It was established in the hearing, beyond any doubt in the opinion of the Stewards, that the competitor exceeded the MGU-K power flow limit permitted", the stewards said in a statement about their ruling.

"The method by which this limit is regulated is well known and understood by the teams".

"We came here knowing that it would be a hard track for us, but the team has done an awesome job to bring the package we needed", he added once out of the auto", Leclerc said.

"The team's defense rested on two points", the stewards' decision read.

Renault argued that the excess was very small and offered no measurable benefit but stewards said that was no defence under the rules.

Hamilton was 0.191 seconds slower, with Leclerc's Ferrari team mate Sebastian Vettel qualifying third after aborting his final lap and Red Bull's Max Verstappen fourth. The team explained to the Stewards how they believe the excess occurred, however the Stewards consider this information to be confidential to the team, and not relevant to this decision.

"This principle has been very clearly affirmed by the International Court of Appeal".

Ricciardo, therefore, was disqualified from qualifying, but he will be allowed to start the race.