Sports Mole rounds up all of the latest news regarding Formula 1 on Sunday, September 22.

Sunday morning's headlines:

Mercedes needs update to catch Ferrari - Hamilton
Ferrari's rivals are surprised by the Italian team's pace in Singapore. Read more.

Teams to discuss 'open source' parts idea for 2021
Formula 1 teams are still squabbling with Liberty Media and the FIA over the proposed rules for 2021. Read more.

F1 drivers slam sprint race qualifying idea
Formula 1 drivers have slammed a proposal to radically shake up the qualifying format. Read more.

Haas eyes Kubica for reserve driver role
Haas boss Gunther Steiner has expressed interest in signing up Robert Kubica for 2020. Read more.

Formula E teams showing 'interest' - Hulkenberg
Nico Hulkenberg is no longer completely ruling out a switch to Formula E. Read more.

Kvyat not in running for Albon's seat - Marko
Alex Albon looks to be on pole position to keep his seat at Red Bull for 2020. Read more.

Sebastian Vettel brands reverse grid proposal "bulls**t"
F1's American owners Liberty Media have staged talks with the teams about revamping qualifying in a bid to spice up the show. Read more.

Charles Leclerc takes pole in Singapore
Lewis Hamilton qualified second ahead of Sebastian Vettel. Read more.

Charles Leclerc fastest in final practice for Singapore Grand Prix
The 21-year-old edged out Lewis Hamilton to second. Read more.

Grosjean not sure why reputation so bad
Romain Grosjean says he is not sure why his reputation in Formula 1 is not so great. Read more.

Symonds denies 2021 cars to be 6 seconds slower
F1 teams have expressed concern about the latest version of the 2021 technical rules. Read more.

Three-race trial for qualifying races in 2020
Christian Horner says the current qualifying format "works fine". Read more.

Bottas accepts Wolff's recent criticism
Valtteri Bottas says he is determined to catch up with Lewis Hamilton in the areas in which he is lacking. Read more.

Kvyat not ruling out Red Bull return
Daniil Kvyat is not writing off his chances of returning to Red Bull in 2020. Read more.

F1 must learn from Hubert-Correa crash - Green
Formula 1 must learn from the crash that killed Anthoine Hubert and left fellow F2 driver Juan Manuel Correa seriously injured. Read more.

Williams eyes Latifi, Hulkenberg for 2020
Claire Williams has named at least two drivers who are on Williams' driver shortlist for 2020. Read more.

Hulkenberg turns down McLaren Indycar offer
Nico Hulkenberg has turned down an offer to drive for McLaren in the British marque's first full Indycar season next year. Read more.

Hulkenberg thinks shyness hurt F1 career
Nico Hulkenberg thinks shyness might have held him back in Formula 1. Read more.