Andrew Benson
BBC Sport’s chief F1 writer in Singaore

The mega-deal involving McLaren/Renault/Honda/Toro Rosso and Carlos Sainz has led to speculation in the last week or so that Sainz could be drafted into Renault as early as the next race in Malaysia, in place of Jolyon Palmer. That always seemed unlikely as it would mean paying Palmer off to break his contract - and him accepting it.

On Thursday, he made his position pretty clear - he is very much not keen on being paid off. “I have a contract,” Palmer said. “I’ve got seven more races this year. There have been suggestions for 35 races that I might be not in the next one, or in the next few. It’s nothing new for me. It is water off a duck’s back. It is the same, I think most races this year it’s been the same, so nothing has changed. I’ve got seven races to do, I’ll be in Malaysia, I’ll be racing until Abu Dhabi.”

Image source, Getty Images

So, lots of topics to discuss today. McLaren, Honda, Red Bull, Toro Rosso, Renault, Sainz, Palmer, Alonso...

Hell, you may even want to talk about those funny things with wheels that flit around the track.

Whatever is on your mind, unload on us via #bbcf1

A little bit of news has already broken in the paddock this morning, with the Singapore Grand Prix extending its commitment to the sport until 2021.

We'll have the full story for you on the website soon.

The McLaren-Honda split announcement is expected shortly after the end of first practice, which gets under way at 09:30 BST and runs for 90 minutes. After that, as Jennie says, the news nuggets should fall like dominoes.

Andrew Benson
BBC Sport’s chief F1 writer in Singaore

Welcome to what has to be the busiest weekend of the Formula 1 season - at least in terms of news.

In the course of the next few hours, McLaren will announce the end of their partnership with engine supplier Honda, who will then say they are joining forces with Toro Rosso, whom Carlos Sainz is leaving to join Renault, whose engines will next year go to McLaren, who are poised to re-sign Fernando Alonso for 2018 - although not this weekend - while Renault have told Red Bull they don't want to continue their partnership beyond 2018, leaving the former world champions apparently with Honda or nothing in 2019, when as a result they may also lose one or possibly both of Daniel Ricciardo and Max Verstappen.

Got all that?

Image source, Getty Images

Got coffee? Good.

Today is going to be a busy one.